Wait for DOM element

gistfile1.js

function waitDOM(element, callback, waitTime) {
	var stop = 0;
	var waitTime = waitTime || 100;

	var wait = setInterval( function() {
		var elementDOM = document.querySelector(element);
		if (elementDOM) {
			clearInterval(wait);
			callback();
		} else {
			if (stop > 100) {
				clearInterval(wait);
				console.log("element not found in interval");
			}
			stop++;
		}
	}, waitTime);
}