var win = null;
function NewWindow(mypage, myname, w, h, scroll)
{
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+', width='+w+', top='+TopPosition+', left='+LeftPosition+', scrollbars='+scroll+', noresize, toolbar=0, status=0, menubar=0'
	win = window.open(mypage,myname,settings)
}