function winpopup1(url)
{
     popup = window.open("", "winpopup1",
'width=450,height=525,directories=no,location=no,menubar=no,resizable=yes,scrollbars=yes,status=no,toolbar=no');
     popup.focus();
     popup.location = url;
}

function winpopup2(url)
{
     popup = window.open("", "winpopup2",
'width=800,height=700,directories=no,location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,toolbar=no');
     popup.focus();
     popup.location = url;
}

function winpopup3(url)
{
     popup = window.open("", "winpopup3",
'width=600,height=700,directories=no,location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,toolbar=no');
     popup.focus();
     popup.location = url;
}

function winpopup4(url)
{
     popup = window.open("", "winpopup4",
'width=640,height=600,directories=yes,location=yes,menubar=yes,resizable=yes,scrollbars=yes,status=yes,toolbar=yes');
     popup.focus();
     popup.location = url;
}