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function getParameterByName(name, url) {
		// see http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript
	    if (!url) url = window.location.href;
	    //url = url.toLowerCase(); // This is just to avoid case sensitiveness  
	    name = name.replace(/[\[\]]/g, "\\$&");//.toLowerCase();// This is just to avoid case sensitiveness for query parameter name
	    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
	        results = regex.exec(url);
	    if (!results) return null;
	    if (!results[2]) return '';
	    return decodeURIComponent(results[2].replace(/\+/g, " "));
	}