function popup(earl,title,sx,sy)
{
    if ( sx == '' || sy == '' )
    {
        window.open(earl,title,'menubar=0,location=0,resizable=1,titlebar=0,scrollbars=1');
    }
    else
    {
        window.open(earl,title,'width='+sx+',height='+sy+',menubar=0,location=0,resizable=1,titlebar=0,scrollbars=1');
    }
}
function closeopener()
{
	opener.window.close();
}