function getXMLHTTP() { //fuction to return the xml http object
		var xmlhttp=false;
		try{
			xmlhttp=new XMLHttpRequest();
		}
		catch(e)	{
			try{
				xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e){
				try{
				xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
				}
				catch(e1){
					xmlhttp=false;
				}
			}
		}

		return xmlhttp;
    }

	function getCategorie(pageId) {

		var strURL="/includes/home_search_retrieve_categorie.lasso?param="+pageId;
		var req = getXMLHTTP();

		if (req) {

			req.onreadystatechange = function() {
				if (req.readyState == 4) {
					// only if "OK"
					if (req.status == 200) {
						document.getElementById('categoriediv').innerHTML=req.responseText;
					} else {
						alert("There was a problem while using XMLHTTP:\n" + req.statusText);
					}
				}
			}
			req.open("GET", strURL, true);
			req.send(null);
		}
	}
	function getLand(pageId,categorieId) {
		var strURL="/includes/home_search_retrieve_land.lasso?param="+pageId+"&id_categorie="+categorieId;
		var req = getXMLHTTP();

		if (req) {

			req.onreadystatechange = function() {
				if (req.readyState == 4) {
					// only if "OK"
					if (req.status == 200) {
						document.getElementById('landdiv').innerHTML=req.responseText;
					} else {
						alert("There was a problem while using XMLHTTP:\n" + req.statusText);
					}
				}
			}
			req.open("GET", strURL, true);
			req.send(null);
		}

	}
	function getProvincie(pageId,categorieId,landId) {
		var strURL="/includes/home_search_retrieve_provincie.lasso?param="+pageId+"&id_categorie="+categorieId+"&id_land="+landId;
		var req = getXMLHTTP();

		if (req) {

			req.onreadystatechange = function() {
				if (req.readyState == 4) {
					// only if "OK"
					if (req.status == 200) {
						document.getElementById('provinciediv').innerHTML=req.responseText;
					} else {
						alert("There was a problem while using XMLHTTP:\n" + req.statusText);
					}
				}
			}
			req.open("GET", strURL, true);
			req.send(null);
		}

	}
		function getPlaats(pageId,categorieId,landId,provincieId) {
		var strURL="/includes/home_search_retrieve_plaats.lasso?param="+pageId+"&id_categorie="+categorieId+"&id_land="+landId+"&id_provincie="+provincieId;
		var req = getXMLHTTP();

		if (req) {

			req.onreadystatechange = function() {
				if (req.readyState == 4) {
					// only if "OK"
					if (req.status == 200) {
						document.getElementById('plaatsdiv').innerHTML=req.responseText;
					} else {
						alert("There was a problem while using XMLHTTP:\n" + req.statusText);
					}
				}
			}
			req.open("GET", strURL, true);
			req.send(null);
		}

	}