function getQueryString( key )
{
	var q = window.location.search.substring(1);
	v = q.split("&");
	for(i=0;i<v.length;i++){
		var p = v[i].split("=");
		if(p[0]==key){
			return p[1];
		}
	}
	return null;
}

function qsBuilder(){
	this._qs = "";
	this.addParam = function( key, val )
	{
		this._qs += (this._qs=="")?"":"&";
		this._qs += key+"="+val;
	}
	this.getQS = function() {
		return this._qs;
	}
}
function doSearch(obj,url){
	val = document.getElementById(obj).value;
	if(val!=""){
		location.href = url + "?" + obj + "=" + val;
	}
}


// Open de infopopup
function OpenInfoPopup(strHREF) {
	window.open(strHREF + '','Information','location=no, status=no, toolbar=no,width=790, height=700, top=100'); 
	return false;
}