Randomize the confirmation message displayed after form submission

randomize_confirm.js

// Have a span with the id of feedback-thanks in your document.

var ran1 = ["Thank you! Your feedback is important to us.","Thanks! Your feedback helps us find the best tools for you.","Thank you! Your feedback helps everyone doing research at GVSU."];
var randomNum = Math.ceil(Math.random()*3); /* Pick random number between 1 and 3 */
document.getElementById("feedback-thanks").innerHTML = ran1[randomNum];