function welcome() {
window.open("pop/pop_welcome.htm","null","height=460,width=690,status=no,location=no,resizable=no,titlebar=no,fullscreen=no,top=30,left=50");
}
function office() {
window.open("pop/pop_office.htm","null","height=460,width=690,status=no,location=no,resizable=no,titlebar=no,fullscreen=no,top=30,left=50");
}