function popup(url) {
w = window.open(url, 'win','width=790,height=700,status=yes,scrollbars=yes,directories=no,menubar=no,resizable=yes,toolbar=no');
w .focus();
}
function popup2(url) {
w = window.open(url, 'win2','width=790,height=700,status=yes,scrollbars=yes,directories=no,menubar=no,resizable=yes,toolbar=no');
w .focus();
}
function popup3(url) {
w = window.open(url, 'win3','width=1024,height=700,status=yes,scrollbars=yes,directories=no,menubar=yes,resizable=yes,toolbar=yes');
w .focus();
}

function popup4(url) {
w = window.open(url, 'win4','width=500,height=600,status=yes,scrollbars=yes,directories=no,menubar=no,resizable=yes,toolbar=no');
w .focus();
}