function popup(url,wid,hei)
{
    //alert ("url: "+url+" wid: "+wid+" hei: "+hei);
	if(isNaN(parseInt(wid)))wid=600;
	if(isNaN(parseInt(hei)))hei=600;
	wind = window.open(url, "new", "width="+wid+",height="+hei+",status=no,toolbar=no,menubar=no,scrollbars=yes,screenX=10,screenY=10");
	wind.focus();
}
function popup_image(img,wid,hei)
{
    //alert ("url: "+url+" wid: "+wid+" hei: "+hei);
	if(isNaN(parseInt(wid)))wid=600;
	if(isNaN(parseInt(hei)))hei=600;
	wind = window.open("gutschein.php?bild="+img, "new", "width="+wid+",height="+hei+",status=no,toolbar=no,menubar=no,scrollbars=no,screenX=10,screenY=10");
	wind.focus();
}

function popupwithname(url,windowName,wid,hei)
{
    //alert ("url: "+url+" wid: "+wid+" hei: "+hei);
	if(isNaN(parseInt(wid)))wid=600;
	if(isNaN(parseInt(hei)))hei=600;
	wind = window.open(url, windowName, "width="+wid+",height="+hei+",status=no,toolbar=no,menubar=no,scrollbars=yes,screenX=10,screenY=10"); 
	wind.focus();
}

function returnBack()
{
	window.history.back();
}