function welcome(str) {

searchWin =
window.open(str,'welcome','scrollbars=yes,resizable=no,width=300,height=300,status=no,location=no,toolbar=no');

}
function mails(str) {

searchWin =
window.open(str,'mails','scrollbars=yes,resizable=no,width=425,height=460,status=no,location=no,toolbar=no');

}