function open_yt_video_window( link )      //
{
y = (screen.availHeight - 270)/2;
    x = (screen.availWidth - 540)/2;

var optiuni='width=485,height=395,screenX='+x+',screenY='+y+',top='+y+',left='+x+',scrollbars=no,resizable=no,location=no,toolbar=no,status=no,menubar=no';

window.open(link,'mywindow',optiuni);
}