function window_open(url,sizex,sizey,r,scrollb)
{
	var r,titlepage,scrollb;
	if (!scrollb) scrollb=0;
	window.open (url, r, 'Toolbar=0, Titlebar=0, Location=0, Directories=0, Status=0, Menubar=0, Scrollbars='+scrollb+', Resizable=0, Copyhistory=1, width='+sizex+',height='+sizey);
}