function changeImage(strUrl) {
    document.getElementById("content").getElementsByTagName("img")[0].src = strUrl;
    document.getElementById("content").getElementsByTagName("img")[0].parentNode.href = strUrl.replace("_medium", "_large");
}

function qlb (adr, ziel) 
{
 var adr = adr.replace(/~/,".");
 var x234 = "lt"
 var tx5  = "o:"
 var rz9  = "mai"
	document.location = rz9 + x234 + tx5 + ziel + '@' + adr;
}