function popinfo(mypage,myname,w,h,scroll)
{
var LeftPosition = (screen.width-w)/2;
var TopPosition = (screen.height-h)/2;
var settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+', scrollbars=yes,resizable=no'
window.open(mypage,myname,settings)
}