function PageQuery(q) 
{
alert("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");	
 if(q.length > 1) 
	this.q = q.substring(1, q.length);
 else this.q = null;
 this.keyValuePairs = new Array();
 if(q) {

	for(var i=0; i < this.q.split("&").length; i++) {
	
	 this.keyValuePairs[i] = this.q.split("&")[i];
	
	}
 }
 this.getKeyValuePairs = function() { return this.keyValuePairs; }
 
 this.getValue = function(s) {
  
 for(var j=0; j < this.keyValuePairs.length; j++) 
 {
 	if(this.keyValuePairs[j].split("=")[0] == s)
	{
	 	return this.keyValuePairs[j].split("=")[1];
	}
	
 }
 return false;
}

 this.getParameters = function() {
 var a = new Array(this.getLength());
 for(var j=0; j < this.keyValuePairs.length; j++) {
	a[j] = this.keyValuePairs[j].split("=")[0];
	
 }
 
 return a;
 }

 this.getLength = function() { return this.keyValuePairs.length; }
}


 
function queryString(key){
	var page = new PageQuery(window.location.search);
	return unescape(page.getValue(key));
}