var wind = null;
function WindowOpen(mypage,myname,w,h,scroll)
{
	Dtop = (screen.height) ? (screen.height-h)/2 : 0;
	Dleft = (screen.width) ? (screen.width-w)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+Dtop+',left='+Dleft+',scrollbars='+scroll+',resizable'
	wind = window.open(mypage,myname,settings)
}

//http://www.dynamicdrive.com/dynamicindex8/autocenter.htm