var resObjekt4 = null;
var resObjekt5 = null;
try {	
	resObjekt4 = new ActiveXObject("Microsoft.XMLHTTP");
	resObjekt5 = new ActiveXObject("Microsoft.XMLHTTP");
}	
catch(Error) {	
	try {		
		resObjekt4 = new ActiveXObject("MSXML2.XMLHTTP");
		resObjekt5 = new ActiveXObject("MSXML2.XMLHTTP");
	}		
	catch(Error) {		
		try {			
			resObjekt4 = new XMLHttpRequest();
			resObjekt5 = new XMLHttpRequest();
		}			
		catch(Error) {			
			alert("Erzeugung des XMLHttpRequest-Objektes fehlgeschlagen");			
		}		
	}	
}	

var artnr = null;
var picnum = null;

function getOverview(grp0,grp1,grp2,brand,sortorder,unique_id) {

	resObjekt4.open('get', 'ov.php?unique_id='+unique_id+'&g0='+grp0+'&g1='+grp1+'&g2='+grp2+'&brand='+brand+'&sortorder='+sortorder, true);
	resObjekt4.onreadystatechange = handleResponse4;
	resObjekt4.send(null);

}

function changeDetailImage(itemnumber,num) {
	
	artnr = itemnumber;
	picnum = num;

	resObjekt5.open('get', 'change_pic.php?item='+itemnumber+'&view='+num, true);
	resObjekt5.onreadystatechange = handleResponse5;
	resObjekt5.send(null);	
	
}

function handleResponse4() {

	if(resObjekt4.readyState == 4) {
	
		document.getElementById("loadOV").innerHTML = resObjekt4.responseText;
	
	}

}

function handleResponse5() {

	if(resObjekt5.readyState == 4) {
	
		document.images["prdDetailPic"].src = resObjekt5.responseText;
		document.getElementById("aZoomLink").href = 'images/products/zoom/'+artnr+'_'+picnum+'.jpg';
		document.getElementById("aZoomLink2").href = 'images/products/zoom/'+artnr+'_'+picnum+'.jpg';
	
	}

}