Get query params from url

gistfile1.js

var getQueryParams = function(param){
		param = param.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
		var regexS = "[\\?&]"+param+"=([^&#]*)",
		regex = new RegExp( regexS ),
		results = regex.exec( window.location.href);
		return results === null ? false : decodeURIComponent(results[1].replace(/\+/g, " "));
	};