");vwo_$('head').append(_vwo_sel);return vwo_$('head')[0] && vwo_$('head')[0].lastChild;})("HEAD")}}, R_940895_62_1_3_2:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","remove",".field-item > p:nth-of-type(2)"); vwo_debug*/(el=vwo_$(".field-item > p:nth-of-type(2)")).vwoRevertCss();})(".field-item > p:nth-of-type(2)")}}, C_940895_62_1_3_3:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("remove","STRONG:tm('Before you go, would you consider something?')"); vwo_debug*/(el=vwo_$("STRONG:tm('Before you go, would you consider something?')")).vwoCss({display:"none !important"});})("STRONG:tm('Before you go, would you consider something?')")}}, C_940895_62_1_2_1:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("editElement","STRONG:tm('Success! You’re subscribed!')"); vwo_debug*/(el=vwo_$("STRONG:tm('Success! You’re subscribed!')")).vwoCss({"font-size":"22px !important"}),(el=vwo_$("STRONG:tm('Success! You’re subscribed!')")).vwoCss({"font-size":"24px !important"});})("STRONG:tm('Success! You’re subscribed!')")}}, R_940895_62_1_2_1:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","editElement","STRONG:tm('Success! You’re subscribed!')"); vwo_debug*/(el=vwo_$("STRONG:tm('Success! You’re subscribed!')")).vwoRevertCss(),(el=vwo_$("STRONG:tm('Success! You’re subscribed!')")).vwoRevertCss();})("STRONG:tm('Success! You’re subscribed!')")}}, C_940895_62_1_3_0:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("visibility","H1:tm('Support The Splendid Table Today')"); vwo_debug*/(el=vwo_$("H1:tm('Support The Splendid Table Today')")).vwoCss({visibility:"hidden !important"}),(el=vwo_$("H1:tm('Support The Splendid Table Today')")).vwoCss({display:"none !important"});})("H1:tm('Support The Splendid Table Today')")}}, R_940895_62_1_3_3:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","remove","STRONG:tm('Before you go, would you consider something?')"); vwo_debug*/(el=vwo_$("STRONG:tm('Before you go, would you consider something?')")).vwoRevertCss();})("STRONG:tm('Before you go, would you consider something?')")}}, C_940895_64_1_2_0:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("content","#tfa_134-L > b:nth-of-type(1)"); vwo_debug*/el=vwo_$("#tfa_134-L > b:nth-of-type(1)"),vwo_$("#tfa_134-L > b:nth-of-type(1)").each((function(){this.__vwoControlOuterHTML=this.__vwoControlOuterHTML||this.outerHTML,vwo_$(this).vwoAttr("class",""),!vwo_$(this).find('[vwo-op-1742933835357-1=""]').length&&vwo_$(this).append('(Optional)'),vwo_$(this).nonEmptyContents().eq(0).replaceWith2(document.createTextNode("In your own words, why would an Marketplace listener choose to become an donor? "))})),el=vwo_$("#tfa_134-L > b:nth-of-type(1)");})("#tfa_134-L > b:nth-of-type(1)")}}, R_940895_64_1_2_0:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","content","#tfa_134-L > b:nth-of-type(1)"); vwo_debug*/(el=vwo_$("#tfa_134-L > b:nth-of-type(1)")).revertContentOp(),el=vwo_$("#tfa_134-L > b:nth-of-type(1)");})("#tfa_134-L > b:nth-of-type(1)")}}, C_940895_62_1_3_1:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("editElement","STRONG:tm('Success! You’re subscribed!')"); vwo_debug*/(el=vwo_$("STRONG:tm('Success! You’re subscribed!')")).vwoCss({"font-size":"22px !important"}),(el=vwo_$("STRONG:tm('Success! You’re subscribed!')")).vwoCss({"font-size":"24px !important"}),(el=vwo_$(".vwo_tm_1742501918554 STRONG:tm('Success! You’re subscribed!')")).html("You are now subscribed to the Weeknight Kitchen newsletter! Before you go, would you consider something?"),el.addClass("vwo_tm_1742501918554");})(".vwo_tm_1742501918554 STRONG:tm('Success! You’re subscribed!')")}}, R_940895_62_1_3_0:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","remove","H1:tm('Support The Splendid Table Today')"); vwo_debug*/(el=vwo_$("H1:tm('Support The Splendid Table Today')")).vwoRevertCss(),(el=vwo_$("H1:tm('Support The Splendid Table Today')")).vwoRevertCss();})("H1:tm('Support The Splendid Table Today')")}}, C_940895_39_1_2_0:{ fn:function(log,nonce=''){return (function(x) {
try{
var _vwo_sel = vwo_$("`);
!vwo_$("head").find('#1740425171461').length && vwo_$('head').append(_vwo_sel);}catch(e) {console.error(e)}
try{}catch(e) {console.error(e)}
try{const getCurrentDate = (d = new Date()) => d.toISOString().split('T')[0];
function vwoCustomEvent (labelValue) {
window.VWO = window.VWO || [];
VWO.event = VWO.event || function () {VWO.push(["event"].concat([].slice.call(arguments)))};
VWO.event("customEvent", { "label": labelValue.toString() });
}
class RadioButtonComponent {
constructor (element) {
this.radio = element.querySelector('input[type="radio"]');
this.label = element.querySelector('label');
}
get value () {
let value = this.radio.value;
if (Number.isNaN(parseFloat(value)))
return value;
if (parseFloat(value) % 1 == 0)
return parseInt(value);
return parseFloat(value);
}
set value (newValue) {
this.radio.value = newValue;
}
get text () {
return this.label.textContent;
}
set text (newText) {
if (this.label.querySelector('.form-required')) {
const labelTextNode = [...this.label.childNodes].filter(({ nodeType }) => nodeType === Node.TEXT_NODE)[0];
labelTextNode.nodeValue = newText;
} else {
this.label.textContent = newText;
}
}
get checked () {
return this.radio.checked;
}
set checked (bool) {
this.click(),
bool === true && this.radio.checked === true;
}
click () {
this.label.click();
}
select () {
this.click();
}
addEventListener (eventType, callbackFunction) {
switch (eventType) {
case 'click':
this.label.addEventListener(eventType, callbackFunction);
case 'change':
default:
this.radio.addEventListener(eventType, callbackFunction);
}
}
}
class TextFieldComponent {
constructor (element) {
this.input = element.querySelector('input[type="text"]');
this.label = element.querySelector('label');
}
get value () {
return this.input.value;
}
set value (newValue) {
this.input.dispatchEvent(new Event('focus'));
this.input.value = newValue;
this.input.dispatchEvent(new Event('keyup'));
this.input.dispatchEvent(new Event('change'));
this.input.dispatchEvent(new Event('blur'));
}
get text () {
return this.input.placeholder;
}
set text (newText) {
this.input.placeholder = newText;
}
addEventListener (eventType, callbackFunction) {
this.input.addEventListener(eventType, callbackFunction);
}
}
class GiftArrayButton extends RadioButtonComponent {
constructor (element) {
super(element);
}
get amount () {
return this.value;
}
set amount (newAmount) {
if (Number.isNaN(parseInt(newAmount)) || parseInt(newAmount) <= 0)
throw new Error("New amount must be a valid number greater than 0.");
newAmount = parseInt(newAmount);
this.text = '$' + newAmount;
this.value = newAmount;
}
}
class GiftArrayOtherAmount extends TextFieldComponent {
constructor (element) {
super(element);
}
get amount () {
return parseFloat(this.value);
}
set amount (newAmount) {
if (Number.isNaN(parseInt(newAmount)) || parseInt(newAmount) <= 0)
throw new Error("New amount must be a valid number greater than 0.");
newAmount = parseFloat(newAmount);
this.value = newAmount;
this.input.dispatchEvent(new Event('updateSummary'));
}
}
class GiftArray extends Array {
constructor (items) {
if (!Array.isArray(items) && items.length === 0) {
throw new Error("GiftArray: Arugment 1 is not an instance of Array with a length greater than 0:" + items.join(', '));
}
if (items.every((item) => item instanceof GiftArrayButton || item instanceof GiftArrayOtherAmount)) {
if (items.find((item) => item instanceof GiftArrayOtherAmount)) {
let temp = items.find((item) => item instanceof GiftArrayOtherAmount);
items = items.filter((item) => item instanceof GiftArrayButton);
items.push(temp);
}
} else if (items.every((item) => item instanceof HTMLElement)) {
items = items.map((item) => item.matches(".webform-component-textfield") ? new GiftArrayOtherAmount(item) : new GiftArrayButton(item));
} else {
throw new Error("GiftArray: Arugment 1 is not of type HTMLElement, HTMLElement[], or GiftArrayButton|GiftArrayButton[]:" + items.join(', '));
}
super(...items);
this.Buttons = items.filter((item) => item instanceof GiftArrayButton);
this.OtherAmountInput = items.find((item) => item instanceof GiftArrayOtherAmount);
}
get amount () {
const activeButton = this.Buttons.find((item) => item.checked);
if (activeButton.value === "other") {
const otherButton = activeButton;
if (!otherButton) {
throw new Error("GiftArray.amount: Other Button was not defined.");
}
otherButton.click();
return this.OtherAmountInput.value;
} else {
return activeButton.value;
}
}
set amount (newAmount) {
if (Number.isNaN(parseInt(newAmount)) || parseInt(newAmount) <= 0)
throw new Error("New amount must be a valid number greater than 0.");
newAmount = parseFloat(newAmount);
const matchingButton = this.find((item) => item.value === newAmount);
if (matchingButton) {
matchingButton.click();
} else {
const otherButton = this.Buttons.find((item) => item.value === "other");
otherButton.click();
this.OtherAmountInput.amount = newAmount;
}
}
addEventListeners (eventType, callbackFunction, filter = undefined) {
if (filter && typeof filter === 'function') {
const filteredItems = this.filter((item) => filter.call(this, item));
filteredItems.forEach((item) => item.addEventListener(eventType, callbackFunction));
} else if (filter && typeof filter === 'string') {
if (filter.match(/buttons/gmi))
this.Buttons.forEach((item) => item.addEventListener(eventType, callbackFunction));
if (filter.match(/other/gmi))
this.OtherAmountInput.addEventListener(eventType, callbackFunction);
} else {
this.forEach((item) => item.addEventListener(eventType, callbackFunction));
}
}
}
class FrequencyButton extends RadioButtonComponent {
constructor (element) {
super(element);
}
get frequency () {
return this.text.match(/Monthly/gmi) ? "Monthly" : "One-Time";
}
set freqency (newAmount) {
if (Number.isNaN(parseInt(newAmount)) || parseInt(newAmount) <= 0)
throw new Error("New amount must be a valid number greater than 0.");
newAmount = parseInt(newAmount);
this.text = '$' + newAmount;
this.value = newAmount;
}
}
class FrequencyArray extends Array {
constructor (items) {
if (!Array.isArray(items) && items.length === 0) {
throw new Error("FrequencyArray: Arugment 1 is not an instance of Array with a length greater than 0:" + items.join(', '));
}
/*if (items.every((item) => item instanceof GiftArrayButton || item instanceof GiftArrayOtherAmount)) {
if (items.find((item) => item instanceof GiftArrayOtherAmount)) {
let temp = items.find((item) => item instanceof GiftArrayOtherAmount);
items = items.filter((item) => item instanceof GiftArrayButton);
items.push(temp);
}
} else*/ if (items.every((item) => item instanceof HTMLElement)) {
items = items.map((item) => item.matches(".webform-component-textfield") ? new GiftArrayOtherAmount(item) : new GiftArrayButton(item));
} else {
throw new Error("FrequencyArray: Arugment 1 is not of type HTMLElement or HTMLElement[]:" + items.join(', '));
}
super(...items);
this.Buttons = items.filter((item) => item instanceof GiftArrayButton);
}
get frequency () {
const activeButton = this.Buttons.find((item) => item.checked);
if (activeButton.value === "recurs")
return "monthly";
if (activeButton.value === "NO_RECURR")
return "one-time";
return activeButton.value;
}
set frequency (newFrequency) {
const reNewFrequencyValue = new RegExp(newFrequency, 'gmi');
const matchingButton = this.find((item) => item.value.match(reNewFrequencyValue) || item.text.match(reNewFrequencyValue));
matchingButton.click();
}
get recurring () {
return this.frequency === "monthly" ? true : false;
}
set recurring (bool) {
this.frequency = bool === true ? "monthly" : "one-time";
}
addEventListeners (eventType, callbackFunction, filter = undefined) {
if (filter && typeof filter === 'function') {
const filteredItems = this.filter((item) => filter.call(this, item));
filteredItems.forEach((item) => item.addEventListener(eventType, callbackFunction));
} else if (filter && typeof filter === 'string') {
if (filter.match(/buttons/gmi))
this.Buttons.forEach((item) => item.addEventListener(eventType, callbackFunction));
if (filter.match(/other/gmi))
this.OtherAmountInput.addEventListener(eventType, callbackFunction);
} else {
this.forEach((item) => item.addEventListener(eventType, callbackFunction));
}
}
}
//
const lockedProperty = { writable: false, configurable: false, enumerable: true };
function DonationFormAPI (elements, options = {}) {
const defaultOptions = {
min: 1.00,
max: 999999.99,
makeTabbed: false,
fakeSubmit: true,
overrideGiftArrayValues: false,
};
options = { ...defaultOptions, ...options };
//
const { frequencyRadios, submitButton, root } = elements;
const [ amountRadiosOnetime, amountRadiosMonthly ] = elements.amountRadios;
const oneTimeOtherAmountWrapper = amountRadiosOnetime.find((div) => !div.matches('.webform-component-textfield') || div.querySelector('input[type="text"]'));
const oneTimeRadioButtons = amountRadiosOnetime.filter((div) => div !== oneTimeOtherAmountWrapper);
const monthlyOtherAmountWrapper = amountRadiosMonthly.find((div) => !div.matches('.webform-component-textfield') || div.querySelector('input[type="text"]'));
const monthlyRadioButtons = amountRadiosMonthly.filter((div) => div !== monthlyOtherAmountWrapper);
const debug = {
log: (...args) => window.NA.DonationForm.DEBUG_MODE && console.log(...args),
info: (...args) => window.NA.DonationForm.DEBUG_MODE && console.log(...args),
warn: (...args) => window.NA.DonationForm.DEBUG_MODE && console.log(...args),
error: (...args) => window.NA.DonationForm.DEBUG_MODE && console.log(...args),
};
//
const api = new Object();
Object.defineProperty(api, 'root', {
value: root,
writable: false,
configurable: true,
enumerable: true,
});
Object.defineProperties(api, {
'FORM_MINIMUM': {
value: options.min || 0,
...lockedProperty
},
'FORM_MAXIMUM': {
value: options.max || Infinity,
...lockedProperty
},
});
Object.defineProperties(api, {
GiftArrays: {
value: {
"one-time": new GiftArray([ ...oneTimeRadioButtons, oneTimeOtherAmountWrapper ]),
"monthly": new GiftArray([ ...monthlyRadioButtons, monthlyOtherAmountWrapper ]),
},
writable: false,
configurable: true,
enumerable: true,
},
Frequencies: {
value: new FrequencyArray(frequencyRadios),
writable: false,
configurable: true,
enumerable: true,
},
SubmitButton: {
value: submitButton,
writable: false,
configurable: false,
enumerable: true,
}
});
Object.defineProperties(api, {
'getFrequency': {
value: async function () {
if (!this || this === null) throw new Error("validate: Unable to read API context.");
return new Promise((resolve, reject) => {
try {
resolve(this.Frequencies.frequency);
} catch (error) {
reject(error);
}
});
}, ...lockedProperty
},
'setFrequency': {
value: async function (frequency) {
if (!this || this === null) throw new Error("validate: Unable to read API context.");
return new Promise(async (resolve, reject) => {
try {
this.Frequencies.frequency = frequency;
if (await this.getFrequency() === frequency)
resolve(frequency);
} catch (error) {
reject(error);
}
});
}, ...lockedProperty
},
'getAmount': {
value: async function (frequency = undefined) {
if (!this || this === null) throw new Error("validate: Unable to read API context.");
return new Promise(async (resolve, reject) => {
try {
frequency = frequency || await this.getFrequency();
if (frequency && this.GiftArrays.hasOwnProperty(frequency)) {
const activeGiftArray = this.GiftArrays[frequency];
resolve(activeGiftArray.amount);
} else {
throw new Error("getAmount: Invalid frequency: " + frequency);
}
} catch (error) {
reject(error);
}
});
}, ...lockedProperty
},
'setAmount': {
value: async function (amount, frequency = undefined) {
if (!this || this === null) throw new Error("validate: Unable to read API context.");
return new Promise(async (resolve, reject) => {
try {
const currentFrequency = await this.getFrequency();
if (!frequency) {
frequency = currentFrequency;
} else if (frequency !== currentFrequency) {
frequency = await this.setFrequency(frequency);
}
if (frequency && this.GiftArrays.hasOwnProperty(frequency)) {
const activeGiftArray = this.GiftArrays[frequency];
activeGiftArray.amount = amount;
} else {
throw new Error("setAmount: Invalid frequency: " + frequency);
}
if (await this.getAmount() === amount)
resolve(amount);
} catch (error) {
reject(error);
}
});
}, ...lockedProperty
},
'getRecurring': {
value: async function () {
if (!this || this === null) throw new Error("validate: Unable to read API context.");
return new Promise((resolve, reject) => {
try {
resolve(this.Frequencies.recurring);
} catch (error) {
reject(error);
}
});
}, ...lockedProperty
},
'setRecurring': {
value: async function (bool) {
if (!this || this === null) throw new Error("validate: Unable to read API context.");
return new Promise(async (resolve, reject) => {
try {
this.Frequencies.frequency = bool ? true : false;
if (await this.getRecurring() === bool)
resolve(bool);
} catch (error) {
reject(error);
}
});
}, ...lockedProperty
},
freqency: {
get () { return this.getFrequency() },
set (value) { this.setFrequency(value) },
enumerable: true, configurable: true,
},
amount: {
get () { return this.getAmount() },
set (value) { this.setAmount(value) },
enumerable: true, configurable: true,
},
recurring: {
get () { return this.getRecurring() },
set (value) { this.setRecurring(value) },
enumerable: true, configurable: true,
},
});
Object.defineProperties(api, {
'submit': {
value: async function (condition = this.validate||function(){return true}) {
//this.hooks['onBeforeSubmit'].forEach((callback) => callback.call(this));
let result;
const isAsyncFunction = (func) => func.constructor.name === "AsyncFunction";
if (Array.isArray(condition)) {
if (condition.every((c) => typeof c === 'function' && isAsyncFunction(c))) {
result = await Promise.all(condition.map(async (c) => await c.call(this)));
} else if (condition.every((c) => typeof c === 'function')) {
result = condition.every((c) => c.call(this));
} else if (condition.every((c) => c === true || c === false)) {
result = condition.every((c) => c);
}
} else if (typeof condition === 'function' && isAsyncFunction(condition)) {
result = await condition.call(this);
} else if (typeof condition === 'function') {
result = condition.call(this);
} else if (condition === true || condition === false) {
result = condition;
} else {
console.error("Unknown error.");
debugger;
}
//
if (result === true) {
if (window.NA.DonationForm.hasOwnProperty("DEBUG_MODE") && window.NA.DonationForm["DEBUG_MODE"] == true)
return console.log("Submit aborted (debug mode is enabled).");
this.SubmitButton.click(),
this.hooks['onSubmit'].forEach((callback) => callback.call(this));
//this.hooks['onAfterSubmit'].forEach((callback) => callback.call(this));
} else {
return console.log("Submit failed (conditions did not evaluate to true).");
}
}, ...lockedProperty
},
'interceptSubmit': {
value: function (handleInterceptedSubmit = () => { return new Promise((resolve) => resolve(undefined)) }) {
try {
window.NA.DonationForm.SubmitButtonCopy = window.NA.DonationForm.SubmitButtonCopy || createNewSubmitButton(window.NA.DonationForm.SubmitButton, { cloneOriginal: false, hideOriginal: true, observeOriginal: false });
window.NA.DonationForm.SubmitButtonCopy.addEventListener('click', async (event) => {
event.preventDefault(), event.stopPropagation();
const shouldFormSubmit = await handleInterceptedSubmit.call(this, event);
if (shouldFormSubmit) {
console.info("Submit allowed by initial interceptSubmit callback function resulting in a truthy evaluation.");
const formIsValid = await window.NA.DonationForm.validate();
if (!formIsValid) { // if submit allowed but there are known errors in the form
console.warn("Form has known errors. Attempting to submit to show errors then retrying.");
console.log("Submitting...");
window.NA.DonationForm.submit(true); // submit anyway to trigger the error to be shown
window.NA.DonationForm.SubmitButton.style.setProperty("display", "none"), debug.info("SubmitButton hidden."), // hide the original submit button again
window.NA.DonationForm.SubmitButtonCopy.style.setProperty("display", "none"), debug.info("SubmitButtonCopy hidden."); // hide the copy of the submit button again
window.NA.DonationForm.SubmitButtonCopy.style.removeProperty("display"), debug.info("SubmitButtonCopy unhidden."); // show the copy of the submit button
} else {
console.log("Submitting...");
window.NA.DonationForm.submit(true);
}
} else {
console.log("Submit prevented.");
console.info("Next submit will be allowed.");
window.NA.DonationForm.SubmitButton.style.removeProperty("display"), debug.info("SubmitButton unhidden."); // show the original submit button so that if something goes wrong the user can still click the submit button
window.NA.DonationForm.SubmitButtonCopy.style.setProperty("display", "none"), debug.info("SubmitButtonCopy hidden."); // hide the copy of the submit button that intercepts submit attempts so that there aren't two buttons
}
});
console.log("Submit intercept added.\nButton:", window.NA.DonationForm.SubmitButtonCopy);
} catch (error) {
console.error("Failed to add submit intercept:", error);
}
}, ...lockedProperty
},
'validate': {
value: async function (root = undefined) {
if (!this || this === null)
throw new Error("validate: Unable to read API context.");
root = root || this.root;
const flattenArray = (array) => array.reduce((flat, toFlatten) => flat.concat(Array.isArray(toFlatten) ? flattenArray(toFlatten) : toFlatten), []);
try {
const freqency = await this.getFrequency(),
amount = await this.getAmount();
if (!freqency || !amount)
return false;
if (amount < this.FORM_MINIMUM || amount > this.FORM_MAXIMUM)
return console.error("validate:", "Gift amount is invalid:", amount), false;
let requiredFields = Array.from(root.querySelectorAll('label:has(.form-required)'))
.map((label) => document.getElementById(label.htmlFor) || (label.nextElementSibling || label.previousElementSibling))
.filter((_) => !!_) // remove blanks
.filter((field) => {
if (field.name && field.name.includes('[payment_information]'))
return false;
return true;
})
.map((field) => {
if (field.matches("div"))
return [...field.querySelectorAll('input')];
return field;
})
requiredFields = flattenArray(requiredFields);
const valid = requiredFields.every((input) => {
const type = input.tagName.toLowerCase() === 'select' ? 'select' : input.type;
const { name, value, id } = input;
//console.log(type, name, value);
if (name === 'submitted[payment_information][payment_fields][credit][card_number]') {
if (value && value.length === 16)
return true;
return console.error("validate:", name+':', "CC is invalid."), false;
}
if (name === 'submitted[leadership_circle]')
return true;
if (name === 'submitted[donation][other_amount]' || name === 'submitted[donation][recurring_other_amount]')
if (amount)
return true;
switch (type) {
case 'email':
const emailRegex = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/;
if (!emailRegex.test(value))
return console.error("validate:", name+':', "Email address is invalid.\n", input, value), false;
return true;
case 'tel':
if (!value || value.length < 10)
return console.error("validate:", name+':', "Phone number is invalid.\n", input, value), false;
return true;
case 'select':
case 'radio':
case 'text':
if (!value || value.length === 0)
return console.error("validate:", name+':', "Field is invalid.\n", input, value), false;
return true;
default:
debug.log("default");
return true;
}
/*if (!value || value.length === 0)
return false;*/
});
return valid;
} catch (error) {
console.error(error);
return false;
}
}, ...lockedProperty
},
//'makeTabbed': { value: function(){} },
'DonationInterrupter': {
value: { init: initDonationInterrupter.bind(api) },
enumerable: true,
configurable: true,
writable: true,
}
});
initHooks(api, ['onFrequencyChange', 'onAmountChange', 'onTrySubmit', 'onSubmit']);
api.Frequencies.addEventListeners('change', (event) => {
if (event.target.checked) {
api.hooks['onFrequencyChange'].forEach((callback) => {
callback.call(api, event.target.value);
});
}
});
Object.entries(api.GiftArrays).forEach(([ key, GiftArray ]) => {
GiftArray.addEventListeners('change', (event) => {
if (event.target.checked) {
api.hooks['onAmountChange'].forEach((callback) => {
callback.call(api, event.target.value);
});
}
});
});
api.SubmitButton.addEventListener('click', (event) => {
api.hooks['onTrySubmit'].forEach((callback) => callback.call(api, event));
});
api.root.addEventListener('submit', (event) => {
api.hooks['onSubmit'].forEach((callback) => callback.call(api, event));
});
if (options.makeTabbed)
api.makeTabbed();
/*if (options.fakeSubmit)
window.NA.DonationForm.SubmitButtonCopy = window.NA.DonationForm.SubmitButtonCopy || createNewSubmitButton(window.NA.DonationForm.SubmitButton, { cloneOriginal: false, hideOriginal: true, observeOriginal: false });*/
return api;
}
function createNewSubmitButton (originalSubmitButton = window.NA.DonationForm.SubmitButton, options = {}) {
const defaultOptions = {
cloneOriginal: true,
hideOriginal: true,
observeOriginal: true,
};
options = { ...defaultOptions, ...options };
const newSubmitButton = document.createElement('button');
//newSubmitButton.id = "submit-button-copy";
newSubmitButton.classList.add("btn");
newSubmitButton.textContent = originalSubmitButton.value;
originalSubmitButton.after(newSubmitButton);
options.hideOriginal && originalSubmitButton.style.setProperty("display", "none");
return newSubmitButton;
}
function initHooks (api, hookNames = []) {
const hooks = Object.fromEntries(hookNames.map((hookName) => ([hookName, new Array()])));
Object.defineProperty(api, 'hooks', {
value: hooks,
...lockedProperty
});
}
function initDonationInterrupter (options = {}) {
const getExpId = () => {
let experiments = window._vwo_exp;
experiments = Object.entries(window._vwo_exp);
let id = experiments.find(([id, data]) => {
const name = data.name;
return name.match(/Donation Interrupter/);
})[1]?.id;
return id;
};
const getExpVariation = (id) => {
let experiment = window._vwo_exp[id];
return experiment.combination_chosen || experiment.combination_selected;
};
const defaultOptions = {
id: [ 'VWO', getExpId(), getExpVariation(getExpId()) ].join('-'),
tokenName: ("NA__MPR_DonationInterrupter:" + [ 'VWO', getExpId(), getExpVariation(getExpId()) ].join('-')),
min: 10,
max: 100,
askAmount: (originalAmount) => {
if (originalAmount > 500) // $500+
return false; // don't show
if (originalAmount >= 400) // $400-$500
return 50;
if (originalAmount >= 300) // $300-$399
return 40;
if (originalAmount >= 200) // $200-$299
return 30;
if (originalAmount >= 100) // $100-$199
return 15;
if (originalAmount < 100) // $100-
return 10;
return false;
},
askFrequency: (originalFrequency) => {
return "monthly";
},
popupHTML: {
headingHTML: (`
Lorem ipsum dolor sit amet
`),
bodyHTML: (`
Consectetur adipiscing elit. Sed nec egestas turpis, hendrerit semper nisl. Pellentesque auctor ipsum at
pharetra eleifend. Pellentesque a rhoncus turpis, ut tempus nibh. Donec vel dui hendrerit nisi imperdiet
tincidunt. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.
Duis efficitur dolor ut nisl blandit imperdiet. Nullam pretium est nunc, tincidunt viverra ligula dapibus.
Duis malesuada:
dui eu venenatis volutpat
urna libero posuere lectus
non tincidunt mauris ligula consectetur felis
lacinia hendrerit enim at molestie
Sed placerat fringilla consequat. Nullam eu pellentesque sem?
`;
document.body.appendChild(dialogElement);
//
//
const api = new Object({
askAmount: options.askAmount,
askFrequency: options.askFrequency,
});
Object.defineProperties(api, {
id: {
value: options.id,
writable: false, enumerable: true, configurable: false,
},
tokenName: {
value: options.tokenName,
writable: false, enumerable: true, configurable: false,
},
Dialog: {
value: dialogElement,
writable: false, enumerable: true, configurable: true,
},
show: {
value: function () {
this.update(),
this.Dialog.showModal(),
vwoCustomEvent(`${this.id}:shown`);
this.storedState.updateTokenProperty("lastShown", getCurrentDate());
this.hooks['onShow'].forEach((callback) => callback.call(this));
}, ...lockedProperty
},
hide: {
value: function () {
this.Dialog.close(),
this.hooks['onHide'].forEach((callback) => callback.call(this));
}, ...lockedProperty
},
update: {
value: function () {
this.Dialog.dispatchEvent(new CustomEvent('update'), { bubbles: false });
}, ...lockedProperty
}
});
Object.defineProperty(api, 'storedState', {
value: {
storageApi: localStorage,
getToken: (function () {
const tokenName = this.tokenName,
storageApi = this.storedState.storageApi;
return JSON.parse(storageApi.getItem(tokenName)) || null;
}).bind(api),
setToken: (function (tokenValue) {
const tokenName = this.tokenName,
storageApi = this.storedState.storageApi;
return storageApi.setItem(tokenName, JSON.stringify(tokenValue));
}).bind(api),
updateTokenProperty: (function (tokenPropertyName, tokenPropertyValue) {
let state = this.storedState.getToken() || {};
state[tokenPropertyName] = tokenPropertyValue;
this.storedState.setToken(state);
return (this.storedState.getToken() || {})[tokenPropertyName] || undefined;
}).bind(api),
}
});
initHooks(api, ['onShow', 'onHide', 'onUpdate', 'onYes', 'onNo']);
function handleDialogUpdate (event) { // update dynamic text in the dialog
Array.from(this.Dialog.querySelectorAll('[data-value]')).forEach(async (el) => {
const attributeValue = el.getAttribute('data-value');
const currentAmount = await window.NA.DonationForm.getAmount(),
currentFrequency = await window.NA.DonationForm.getFrequency();
if (attributeValue.match("askAmount")) {
el.textContent = this.askAmount(currentAmount);
} else if (attributeValue.match("askFrequency")) {
el.textContent = this.askFrequency(currentFrequency);
} else if (attributeValue.match("originalAmount") || attributeValue.match("amount")) {
el.textContent = currentAmount;
} else if (attributeValue.match("originalFrequency") || attributeValue.match("frequency")) {
el.textContent = currentFrequency;
}
});
this.hooks['onUpdate'].forEach((callback) => callback.call(this));
}
api.Dialog.addEventListener('update', handleDialogUpdate.bind(api));
//
const handleYes = (async function () {
vwoCustomEvent(`${this.id}:DonationInterrupter:yes`);
const currentAmount = await window.NA.DonationForm.getAmount(),
currentFrequency = await window.NA.DonationForm.getFrequency();
const catchAsyncError = (error) => { console.error("An error occured:", error); debugger; this.hide(); };
window.NA.DonationForm.setFrequency(this.askFrequency(currentFrequency)).then((frequency) => {
console.log("Updated frequency:", frequency);
window.NA.DonationForm.setAmount(this.askAmount(currentAmount)).then((amount) => {
console.log("Updated amount:", amount);
setTimeout(() => {
console.log("Submitting...");
try {
window.NA.DonationForm.submit();
} catch (error) {
console.error("Error when submitting.");
} finally {
this.hide();
}
}, 100);
}).catch(catchAsyncError);
}).catch(catchAsyncError);
this.storedState.updateTokenProperty("lastConverted", getCurrentDate());
}).bind(api);
const handleNo = (function () {
vwoCustomEvent(`${this.id}:DonationInterrupter:no`);
setTimeout(() => {
console.log("Submitting...");
try {
window.NA.DonationForm.submit();
} catch (error) {
console.error("Error when submitting.");
} finally {
this.hide();
}
}, 100);
this.storedState.updateTokenProperty("lastDismissed", getCurrentDate());
}).bind(api);
const handleCancel = (function () {
this.hide();
this.storedState.updateTokenProperty("lastDismissed", getCurrentDate());
}).bind(api);
async function handleDialogButtonClick (event) {
event.preventDefault();
if (event.target.hasAttribute('data-action')) {
if (event.target.getAttribute('data-action').match("yes")) {
await handleYes.call(this);
this.hooks['onYes'].forEach((callback) => callback.call(this));
}
if (event.target.getAttribute('data-action').match("no")) {
await handleNo.call(this);
this.hooks['onNo'].forEach((callback) => callback.call(this));
}
}
}
Array.from(api.Dialog.querySelectorAll('.popup__footer button')).forEach((button) => button.addEventListener('click', handleDialogButtonClick.bind(api)));
if (api.Dialog.querySelector('.btn-dismiss'))
api.Dialog.querySelector('.btn-dismiss').onclick = handleCancel;
window.NA.DonationForm.DonationInterrupter = api;
async function shouldDonationInterrupterShow () {
return new Promise(async (resolve, reject) => {
const shouldSubmit = true,
shouldNotSubmit = false;
const shouldShow = () => { this.show(), resolve(shouldNotSubmit) },
shouldNotShow = () => resolve(shouldSubmit);
try {
const formIsValid = await window.NA.DonationForm.validate();
if (!formIsValid)
return console.log("One or more donation form fields are invalid; donation interrupter will not be shown."),
shouldNotShow();
const currentFrequency = await window.NA.DonationForm.getFrequency(),
currentAmount = await window.NA.DonationForm.getAmount(),
askFrequency = this.askFrequency(currentFrequency),
askAmount = this.askAmount(currentAmount);
if (!currentFrequency || askFrequency == currentFrequency)
return console.log("Ask frequency returned false or invalid; donation interrupter will not be shown."),
shouldNotShow();
if (askAmount == false || askAmount <= 0)
return console.log("Ask amount returned false or invalid; donation interrupter will not be shown."),
shouldNotShow();
} catch (error) {
return console.error(error),
shouldNotShow();
}
try {
/// Summary: shows when not seen before at all, or if seen and dismissed on a day that is not the current day (e.g. yesterday)
const storedState = this.storedState.getToken();
if (!storedState || !storedState.hasOwnProperty("lastShown")) { // has not been seen before; first time
return console.log("Donation interrupter not seen yet; donation interrupter will be shown."),
shouldShow();
} else { // returning visitors
if (storedState.hasOwnProperty("lastConverted")) { // the user has converted from the popup before
return console.log("Already converted; donation interrupter will not be shown."),
shouldNotShow();
}
else if (storedState.hasOwnProperty("lastDismissed") && storedState['lastDismissed'] !== getCurrentDate()) { // if the popup has been dismissed before but the last time it was dismissed is NOT today
return console.log("Donation interrupter dismissed, but not today; donation interrupter will be shown."),
shouldShow();
}
else {
return console.log("Donation interrupter already seen and/or dismissed today; donation interrupter will not be shown."),
shouldNotShow();
}
}
} catch (error) {
return console.error(error),
shouldNotShow();
}
});
}
window.NA.DonationForm.interceptSubmit(shouldDonationInterrupterShow.bind(api));
resolve(api);
} catch (error) {
console.error(error);
}
});
}
window.NA = window.NA || {};
window.NA.DonationForm = window.NA.DonationForm || {};
window.NA.DonationForm.init = async function init () {
console.log("Initializing donation form API. Waiting for required elements....");
return new Promise((resolve, reject) => {
const asyncWaitForElement=async function(e,r=100,t=1e4){r=Number.isInteger(r)&&r>0&&r<=100?r:parseInt(r);let n="Array";if("NaN"==r)return console.error("Invalid refresh interval:",r);Array.isArray(e)||"string"!=typeof e||(n="string",e=[e]);let l=e=>document.querySelector(e),i=e=>e.every(e=>!!l(e));return new Promise((R,a)=>{let m=(e,r=null)=>(r&&clearInterval(r),R("Array"==n||e.length>1?e.map(e=>l(e)):l(e[0]))),o=n=>{console.error(`${n.name}: ${n.message}`);let l=()=>asyncWaitForElement(e,r=100,t=1e4);return a(n,l)};try{if(i(e))return m(e);let s=setInterval(()=>{if(i(e))return m(e,s)},1e3/r);setTimeout(()=>{try{if(!i(e)){clearInterval(s);let r=Error(`Failed to find matching elements within ${t}ms`);throw r.name="Timed Out",r}}catch(n){return o(n)}},t)}catch(u){return o(u)}})};
asyncWaitForElement([ 'form.webform-client-form', '#webform-component-donation--recurs-monthly', '#webform-component-donation--amount', '#webform-component-donation--recurring-amount', '.form-actions input[type="submit"]' ]).then(([ componentDonationForm, componentFrequency, componentAmountOnetime, componentAmountMonthly, formSubmitButton ]) => {
const api = DonationFormAPI({
root: componentDonationForm,
frequencyRadios: [...componentFrequency.querySelectorAll('.form-type-radio')],
amountRadios: [
[...componentAmountOnetime.querySelectorAll('div > .form-type-radio, div > .webform-component-textfield')],
[...componentAmountMonthly.querySelectorAll('div > .form-type-radio, div > .webform-component-textfield')],
],
submitButton: formSubmitButton,
//
});
window.NA.DonationForm = { ...window.NA.DonationForm, ...api };
resolve(window.NA.DonationForm);
}).catch((error) => reject(error));
});
};
}catch(e) {console.error(e)}
return vwo_$('head')[0] && vwo_$('head')[0].lastChild;})("head")}}, R_940895_39_1_2_0:{ fn:function(log,nonce=''){return (function(x) {
try{
var ctx=vwo_$(x),el;
/*vwo_debug log("Revert","content",""); vwo_debug*/;
el=vwo_$('[vwo-element-id="1740425171461"]');
el.revertContentOp().remove();
} catch(e) {console.error(e)}
try{
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","addElement","body"); vwo_debug*/(el=vwo_$('[vwo-element-id="1740425171462"]')).remove();
} catch(e) {console.error(e)}
return vwo_$('head')[0] && vwo_$('head')[0].lastChild;})("head")}}, C_940895_39_1_2_1:{ fn:function(log,nonce=''){return (function(x) {
try{
var _vwo_sel = vwo_$("`);
!vwo_$("head").find('#1740425171462').length && vwo_$('head').append(_vwo_sel);}catch(e) {console.error(e)}
try{}catch(e) {console.error(e)}
try{const DONATION_INTERRUPTER_OPTIONS = {
headingSectionHTML: (`
Before you go, would you consider becoming a sustainer to MPR News?
`),
bodySectionHTML: (`
Your monthly gift supports trusted journalism, music discovery, and community
conversation for all – no matter where you live or how you listen. From the
broadcast to the podcast, on-air and online, gifts from individuals power everything
you find at Minnesota Public Radio.
Would you consider becoming a sustainer by converting your one-time gift to a
monthly gift today?
`),
min: 100, // do not show if original gift is below this amount
max: 500, // do not show if original gift is above this amount
askAmount: (originalAmount) => {
// the input is the original amount
// the output is the ask amount, or false if the input does not map to an ask amount
if (originalAmount > 500.00) // $500+
return false; // don't show
if (originalAmount >= 400.00) // $400-$500
return 50.00;
if (originalAmount >= 300.00) // $300-$399
return 40.00;
if (originalAmount >= 200.00) // $200-$299
return 30.00;
if (originalAmount >= 100.00) // $100-$199
return 15.00;
if (originalAmount < 100.00) // $100-
return 10.00;
return false;
},
};
//
//
//
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
//
//
//
window.NA.DonationForm.init({ makeTabbed: false }).then(async (donationFormApi) => {
//console.log("DonationForm:", donationFormApi);
console.log("Donation Form: %c READY %c", 'background-color: MediumSeaGreen; color: white; font-weight: bold;', 'background-color: unset; color: unset; font-weight: unset;');
console.log(donationFormApi);
const interrupter = await donationFormApi.DonationInterrupter.init({
min: DONATION_INTERRUPTER_OPTIONS.min,
max: DONATION_INTERRUPTER_OPTIONS.max,
askAmount: DONATION_INTERRUPTER_OPTIONS.askAmount,
popupHTML: {
headingHTML: DONATION_INTERRUPTER_OPTIONS.headingSectionHTML,
bodyHTML: DONATION_INTERRUPTER_OPTIONS.bodySectionHTML,
},
});
//console.log("DonationInterrupter", interrupter);
console.log("Donation Interrupter: %c READY %c", 'background-color: MediumSeaGreen; color: white; font-weight: bold;', 'background-color: unset; color: unset; font-weight: unset;');
console.log(interrupter);
//interrupter.show(); // debug: always show popup immediately when page loads
}).catch((error) => { console.log("Donation Interrupter: %c FAILED %c An error occured when initializing the API:", 'background-color: Tomato; color: white; font-weight: bold;', 'background-color: unset; color: Tomato; font-weight: unset;'), console.error(error) });
}catch(e) {console.error(e)}
return vwo_$('head')[0] && vwo_$('head')[0].lastChild;})("head")}}, R_940895_62_1_2_0:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","remove","H1:tm('Support The Splendid Table Today')"); vwo_debug*/(el=vwo_$("H1:tm('Support The Splendid Table Today')")).vwoRevertCss(),(el=vwo_$("H1:tm('Support The Splendid Table Today')")).vwoRevertCss();})("H1:tm('Support The Splendid Table Today')")}}, R_940895_61_1_2_9:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","editElement","#tfa_134-L > b:nth-of-type(1)"); vwo_debug*/(el=vwo_$("#tfa_134-L > b:nth-of-type(1)")).vwoRevertHtml();})("#tfa_134-L > b:nth-of-type(1)")}}, C_940895_61_1_2_9:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("editElement","#tfa_134-L > b:nth-of-type(1)"); vwo_debug*/(el=vwo_$("#tfa_134-L > b:nth-of-type(1)")).html("10. In your own words, why would an MPR listener choose to become a donor?");})("#tfa_134-L > b:nth-of-type(1)")}}, R_940895_48_1_2_0:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var ctx=vwo_$(x),el;
/*vwo_debug log("Revert","content",""); vwo_debug*/;
el=vwo_$('[vwo-element-id="1742919897117"]');
el.revertContentOp().remove();})("HEAD")}}, C_940895_48_1_2_1:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("editElement",".stylingblock-content-margin-cell > table:nth-of-type(1) > tbody:nth-of-type(1) > tr:nth-of-type(1) > td:nth-of-type(1) > div:nth-of-type(1) > div:nth-of-type(1) > h2:nth-of-type(1) > span:nth-of-type(1)"); vwo_debug*/(el=vwo_$(".stylingblock-content-margin-cell > table:nth-of-type(1) > tbody:nth-of-type(1) > tr:nth-of-type(1) > td:nth-of-type(1) > div:nth-of-type(1) > div:nth-of-type(1) > h2:nth-of-type(1) > span:nth-of-type(1)")).html("Hello! David Brancaccio here. Do you want instant access to the free online course - “Economics 101” - to understand basic economic concepts?");})(".stylingblock-content-margin-cell > table:nth-of-type(1) > tbody:nth-of-type(1) > tr:nth-of-type(1) > td:nth-of-type(1) > div:nth-of-type(1) > div:nth-of-type(1) > h2:nth-of-type(1) > span:nth-of-type(1)")}}, R_940895_48_1_2_1:{ fn:function(log,nonce=''){return (function(x) {
if(!vwo_$.fn.vwoRevertHtml){
return;
};
var el,ctx=vwo_$(x);
/*vwo_debug log("Revert","editElement",".stylingblock-content-margin-cell > table:nth-of-type(1) > tbody:nth-of-type(1) > tr:nth-of-type(1) > td:nth-of-type(1) > div:nth-of-type(1) > div:nth-of-type(1) > h2:nth-of-type(1) > span:nth-of-type(1)"); vwo_debug*/(el=vwo_$(".stylingblock-content-margin-cell > table:nth-of-type(1) > tbody:nth-of-type(1) > tr:nth-of-type(1) > td:nth-of-type(1) > div:nth-of-type(1) > div:nth-of-type(1) > h2:nth-of-type(1) > span:nth-of-type(1)")).vwoRevertHtml();})(".stylingblock-content-margin-cell > table:nth-of-type(1) > tbody:nth-of-type(1) > tr:nth-of-type(1) > td:nth-of-type(1) > div:nth-of-type(1) > div:nth-of-type(1) > h2:nth-of-type(1) > span:nth-of-type(1)")}}, C_940895_48_1_2_2:{ fn:function(log,nonce=''){return (function(x) {var el,ctx=vwo_$(x);
/*vwo_debug log("content","[vwo-element-id='1742482566780']"); vwo_debug*/(el=vwo_$("[vwo-element-id='1742482566780']")).replaceWith2("You'll gain real-world insights into how economics impacts your daily life with this easy-to-follow online course. This crash course is based on the acclaimed textbook Economy, Society, and Public Policy by CORE Econ, tailored to help you grasp key concepts without feeling overwhelmed.
Whether you're new to economics or just want to deepen your understanding, this course covers the basics and connects them to today’s pressing issues—from inequality to public policy decisions.
Each week, you'll receive a reading guide that distills core principles, offers actionable takeaways, and explains how they affect the current world. While the full ebook enriches the experience, the guides alone provide a comprehensive understanding of fundamental economic ideas.
You'll gain real-world insights into how economics impacts your daily life with this easy-to-follow online course. This crash course is based on the acclaimed textbook Economy, Society, and Public Policy by CORE Econ, tailored to help you grasp key concepts without feeling overwhelmed.
Whether you're new to economics or just want to deepen your understanding, this course covers the basics and connects them to today’s pressing issues—from inequality to public policy decisions.
Each week, you'll receive a reading guide that distills core principles, offers actionable takeaways, and explains how they affect the current world. While the full ebook enriches the experience, the guides alone provide a comprehensive understanding of fundamental economic ideas.
You’ll find this course especially useful and unique because…
It allows you to understand economics in action: Real-life examples and analysis of current events that show you economics at work.
There’s no prior knowledge required: Complex ideas are broken into simple, relatable explanations.
You can be flexible with your learning according to your lifestyle: Go at your own pace, with weekly guides that fit your schedule.
Are you ready to build a foundation in economics that empowers you to think critically about the world around you?
Get instant access today and keep an eye on your inbox for a confirmation email and your first lesson.
By submitting, you consent that you are at least 18 years of age and to receive information about MPR's or APMG entities' programs and offerings. The personally identifying information you provide will not be sold, shared, or used for purposes other than to communicate with you about MPR, APMG entities, and its sponsors. You may opt-out at any time clicking the unsubscribe link at the bottom of any email communication. View our Privacy Policy.
There are miles of underground passageways in southeastern Minnesota that tell a story of the area long before it was a state.
Etched into the limestone of the 400 caves in that region of the state are fossils of creatures from 450 million years ago, when Minnesota was covered by an inland sea.
MPR News host Angela Davis talked about what makes these underground worlds wondrous with Aaron Bishop, the manager of Niagara Cave in Harmony, Minn.; Ian Pringle, an interpretive naturalist with the Minnesota Department of Natural Resources who leads tours at the Mystery Cave near Forestville, Minn.; and John Ackerman, the founder of the Minnesota Cave Preserve and the Minnesota Caving Club.
Here are five questions and a list of fun facts you should know if you’re a cave lover.
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The following transcript has been edited for length and clarity. Use the audio player above to listen to the full conversation.
Why is Southeast Minnesota the place for caves to be?
Bishop: We’re in a region called the Karst country. Karst is a type of topography that is characterized by caves or springs or disappearing streams, sinkholes and things like that. These are all made possible because around 450 million years ago, during the late Ordovician period, this entire region was covered by a very shallow saltwater sea and the carbonate mud that was deposited at the bottom of that shallow sea would eventually become the limestone bedrock that we get to delve into when we go into our caves and that’s why we can find seashells or fossils of creatures that once lived in the shallow sea.
Limestone is fairly easily dissolvable. Geologically, it’s sort of like the salt or the sugar of rock. It’s not as easily dissolvable as that, of course, but over hundreds of thousands of years, as water seeps through limestone cracks and vertical fractures or horizontal bedding planes, it can widen out those cracks and basically develop caves, either from running water physically eroding its way through or from chemical dissolution, kind of like if you have pop in your mouth for too long, it can start to dissolve your calcium carbonate teeth, very similar process. It’s just over a lot longer time span.
First hallway in Niagara Cave.
Courtesy of Niagara Cave
Is it possible to own a cave?
Bishop: From my understanding in the state of Minnesota, if you own land on the surface, you own it all the way to the center of the Earth, barring other previous agreements. So if you own land on the surface and you find a cave underneath on your own property, then that cave happens to be yours.
How do people find caves?
Bishop: There are depressions on the surface. In our case in southeastern Minnesota, we’ve got a lot of sinkholes. Not every single one leads into a cave for sure but some of them do such as a Niagara Cave. Some people find caves through horizontal entrances, I believe, like Mystery Cave. When that cave was discovered, my understanding is there was melted snow or a warm space because it was found in the wintertime. When it’s 48 degrees in the cave it melts the snow around there, and there’s an opening into that sidewall there.
A dripstone formation in Mystery Cave.
Danelle Cloutier | MPR News
Is it safe to visit Mystery Cave?
Pringle: One thing we are always concerned about is the safety of our guests and the scenic route is a great tour that leads out of the main entrance, out of the main visitor center here. It’s a very accessible route, you can actually get wheelchairs, strollers through there just fine. It’s not fully ADA-approved but we have it ramped.
We’re always telling people to watch their headspace, watch their footing because, you know, it’s 96 percent humidity down there, you walk on steel grates, they can be slick.
This cave actually has two different entrances to it. The one I just described is the scenic tour and then separated eight miles underground, you can reach the other entrance of Mystery Cave. It’s about two miles as the crow flies on the surface. But that entrance is a much more rustic experience, you’re going to be on compacted dirt floors, it’s uneven terrain. And with that, we always encourage and actually, it’s mandated that you go down there with close-toed shoes, good traction. And then we always recommend on whatever tour you’re gonna be on a nice sweater or something because of that 48 degrees.
The wishing well in Niagara Cave.
Courtesy of Niagara Cave
Have you noticed any changes in caves because of environmental changes?
Bishop: Probably the biggest changes we’ve seen would be the impacts from heavy rainfall, heavy and targeted rainfall. 2018 in Harmony, it broke the state record for most rainfall in a single year at I think 60.2 inches of rain, and we felt every inch of rain here at the cave.
We can get water in the cave. It’s not dangerous. It’s very slow when water rises in the cave, but the number of times that we’ve had to close off certain portions of the lower rooms because of too much water coming in, again, very slowly, it’s not an issue in terms of safety so much, it just fills the room and backs up into those last and lowest rooms of the cave, so they’re not accessible.
Mystery Cave's Turquoise Lake.
Danelle Cloutier | MPR News
Eight facts you might find interesting (or fun):
Soda Straw Stalactites at Niagara Cave.
Courtesy of Niagara Cave
1) Stalactites and stalagmites are formed by carbonic acid, the same component that makes a soda fizz.
2) Mystery Cave gets its name from the anecdote of a man that worked at the cave in the late 30s: “He was doing work down there and he had a wheelbarrow full of gravel and as he was pulling or pushing his wheelbarrow, it tipped over and the gravel spilled everywhere. And he said: ‘It’s a mystery anybody would want to work down here,“ Pringle said.
A ribbon stalactite (aka "cave bacon") at Niagara Cave.
Courtesy of Niagara Cave
3) Mystery Cave has a unique micro-vertebrae not found in any other cave in the world.
4) Cave formations can have the shape of bacon, carrot sticks and even popcorn.
5) No mammals live in the Niagara Cave, just little critters.
6) Mystery Cave hosts fossils from 450 million years ago, making it twice as old as some of the first dinosaurs that roamed the Earth.
7) Mystery Cave lost 90 percent of its bats in less than 10 years due to white-nose syndrome.
8) Niagara Cave feels colder in the summer and hotter in the fall.
Fisherite fossil at Niagara Cave (aka a 450 million-year-old alga fossil).
Welcome to Minnesota's underground. Mystery Cave is one of 400 caves in the southeastern region of the state. Learn why on MPR News with Angela Davis. pic.twitter.com/JzOTKXBYz2
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