var links = ( screen.availWidth - 700 ) / 2
var oben = ( screen.availHeight - 600 ) / 2

function newLink(URL)
{
if(document.images)
newWin = open(URL,"info","width=700,height=500,menubar=no,status=no,locationbar=no,resizable=yes,scrollbars=yes");
newWin.moveTo(links,oben);
newWin.focus();
}

function listen(URL)
{
if(document.images)
listenWin = open(URL,"listen","width=700,height=500,menubar=no,status=no,locationbar=no,resizable=no,scrollbars=no");
listenWin.moveTo(links,oben);
listenWin.focus();
}