function popup(fname, width, height)
{
width = width > 0 ? width : 620;
height = height > 0 ? height: 650;
var top = 75;
var left = (screen.width - width) / 2;
var newWin = window.open('', '', 'width='+width+', height='+height+', top='+top+', left='+left+' menubar=no, toolbar=no, status=no, scrollbars=yes,resizable=yes');
newWin.document.write(
'' +
'
' +
'');
return false;
}