function QueryString(key){

	var value=null;
	for(var i=0;i<QueryString.keys.length;i++){
		if(QueryString.keys[i]==key){
			value=QueryString.values[i];break;
		}
	}

	return value;
}

QueryString.keys=new Array();
QueryString.values=new Array();

function QueryString_Parse(){

	var query=window.location.search.substring(1);
	var pairs=query.split("&");

	for(var i=0;i<pairs.length;i++){
		var pos=pairs[i].indexOf('=');
		if(pos>=0){
			var argname=pairs[i].substring(0,pos);
			var value=pairs[i].substring(pos+1);QueryString.keys[QueryString.keys.length]=argname;
			//QueryString.values[QueryString.values.length]=unescape(value.replace(/\%20/g," "));
			QueryString.values[QueryString.values.length]=unescape(value.replace(/\+/gi," "));
		}
	}
}
QueryString_Parse();