Populate email field from email param

gistfile1.txt

/*
	Function: getUrlParameters
	Description: Get the value of URL parameters either from current URL or static URL
	Author: Tirumal
	URL: www.code-tricks.com
*/
getUrlParameters: function (parameter, staticURL, decode) {

	var currLocation = (staticURL.length) ? staticURL : window.location.search,
	parArr = currLocation.split('?')[1].split('&'),
	returnBool = true;

	for (var i = 0; i < parArr.length; i += 1) {
		var parr = parArr[i].split('=');
		if (parr[0] === parameter) {
			returnBool = true;
			return (decode) ? decodeURIComponent(parr[1]) : parr[1];
		} else {
			returnBool = false;
		}
	}

	if (!returnBool) {
		return false;
	}

}

populateEmailField: function (field) {

	var email = this.getUrlParameters('email', '', true);
	$(field).val(email);

}