var z_newWin = null;
function openurl (sPic,w,h,alt) {
var t = (screen.height - h) / 2;
var l = (screen.width - w) / 2;
h = 280;
var winArgs = 'height=' + h + ',width=' + w + ',top=' + t + ',left=' + l + 'status=no,toolbar=no,menubar=no,location=no,fullscreen=no,resizeble=no,directories=no';
var sCont = '\n\n' + alt + '\n\n\n\n
\n\n\n'
if(z_newWin != null) z_newWin.close();
z_newWin = window.open(sPic, null, winArgs);
z_newWin.document.open();
z_newWin.document.write(sCont);
z_newWin.document.close();
return false;
}