var xmlHttp;
	
	function createXMLHttpRequest() {
		if ( window.ActiveXObject ) {
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		} else if ( window.XMLHttpRequest ) {
			xmlHttp = new XMLHttpRequest();
		}
	}
	
	function change_main(prodID, prodFotoID) {
		createXMLHttpRequest();
		xmlHttp.onreadystatechange = outputChangeFoto;
		xmlHttp.open("GET","../ajax/ajax_change_main.php?prodID=" + prodID + "&prodFotoID=" + prodFotoID, true);
		xmlHttp.send(null);
	}
	
	function outputChangeFoto() {
		if ( xmlHttp.readyState == 4 ) {
			if ( xmlHttp.status == 200 ) {
				document.getElementById("mainpic").innerHTML = xmlHttp.responseText;
				initLightbox();
			}
		}
	}

	function change_thumb(catID,range) {
		createXMLHttpRequest();
		xmlHttp.onreadystatechange = outputChangeThumb;
		xmlHttp.open("GET","../ajax/ajax_change_thumbs.php?catID=" + catID + "&range=" + range, true);
		xmlHttp.send(null);
	}
	
	function outputChangeThumb() {
		if ( xmlHttp.readyState == 4 ) {
			if ( xmlHttp.status == 200 ) {
				document.getElementById("thumbs").innerHTML = xmlHttp.responseText;
				initLightbox();
			}
		}
	}

	function checkmail() {
		var get_voornaam = document.getElementById("voornaam").value;
		var get_naam = document.getElementById("naam").value;
		var get_straat = document.getElementById("straat").value;
		var get_wplaats = document.getElementById("woonplaats").value;
		var get_tel = document.getElementById("tel").value;
		var get_mail = document.getElementById("mail").value;
		var get_bericht = document.getElementById("bericht").value;

		createXMLHttpRequest();
		xmlHttp.onreadystatechange = outputContact;
		xmlHttp.open("GET","../ajax/ajax_check_mail.php?vnaam=" + get_voornaam + "&naam=" + get_naam + "&straat=" + get_straat + "&wplaats=" + get_wplaats + "&tel=" + get_tel + "&mail=" + get_mail + "&bericht=" + get_bericht, true);
		xmlHttp.send(null);
	}
	
	function outputContact() {
		if ( xmlHttp.readyState == 4 ) {
			if ( xmlHttp.status == 200 ) {
				if ( xmlHttp.responseText == 'email' ) {
					document.getElementById("mail_errorbox").style.visibility = "visible";
					document.getElementById("mail_errorbox").innerHTML = '<em>* Gelieve uw e-mail adres in te vullen.</em>';
				} else if ( xmlHttp.responseText == 'email2' ) {
					document.getElementById("mail_errorbox").style.visibility = "visible";
					document.getElementById("mail_errorbox").innerHTML = '<em>* Gelieve een geldig email adres in te vullen.</em>';
				} else if ( xmlHttp.responseText == 'naam' || xmlHttp.responseText == 'voornaam' ) {
					document.getElementById("mail_errorbox").style.visibility = "visible";
					document.getElementById("mail_errorbox").innerHTML = '<em>* Gelieve uw naam in te vullen.</em>';
				} else if ( xmlHttp.responseText == 'bericht' ) {
					document.getElementById("mail_errorbox").style.visibility = "visible";
					document.getElementById("mail_errorbox").innerHTML = '<em>* Gelieve een bericht in te geven.</em>';
				} else {
					document.getElementById("mail_errorbox").innerHTML = '<em>* Uw e-mail werd vezonden.</em>';
				}
			}
		}
	}