function changedisp(var1){
	if (var1){
		var curloc = window.location +"";
		var url = curloc.split("?");
		var params = url[1].split("&");
		var param = "";
		for(var x=0;x < params.length;x++){
			if (params[x].indexOf('displayNumber') < 0){
				param += params[x] +"&";
			}
		}

		window.location = url[0] +"?"+ param +"displayNumber="+ var1;
	}

//	window.location = url;
}