function openpopup(which_page)
{
	popup_top = 100;
	popup_left = Math.round(screen.availWidth/2-250);
	win = window.open('', 'br_screenshot', "resizable=no,toolbar=no,menubar=no,location=no,scrollbars=no,status=no,width=500,height=155,screenX=100,screenY=100,top=" + popup_top + ",left=" + popup_left + ",dependent=no");
	win.location = which_page;
	win.focus();
	return false;
}