Funções JS

fn.js

function generateUrl() {
	var location = window.location,
		url = window.location.href;
	if (location.protocol == 'https:') {
		url = 'https:' + location.href.substring(location.protocol.length);
	}
	return url;
}

function hasClass(el, className) {
	if (el.classList) {
		return el.classList.contains(className)
	} else {
		return !!el.className.match(new RegExp(('\\s|^') + className + '(\\s|$)'))
	}
}

function addClass(el, className) {
	if (el.classList) {
		el.classList.add(className)
	} else if (!hasClass(el, className)) {
		el.className += " " + className;
	}
}

function removeClass(el, className) {
	if (el.classList) {
		el.classList.remove(className)
	} else if (hasClass(el, className)) {
		var reg = new RegExp('(\\s|^)' + className + '(\\s|$)');
		el.className = el.className.replace(reg, ' ');
	}
}