function jobtv(njobtvid) {
	width  = 528;
	height = 381;
    left = ( ( screen.availWidth - width ) / 2 ) - ( screen.width - screen.availWidth );
    oben = ( ( screen.availHeight - height ) / 2 ) - ( screen.height - screen.availHeight );
    jobtvfenster = window.open('http://www.jobtv24.de/video.php?ct=507&vid=' + njobtvid, 'JobTVPopup','dependent=yes,titlebar=no,toolbar=no,status=no,menubar=no,location=no,hotkeys,directories=no,resizable=no,scrollbars=no,height='+height+',width='+width+',left='+left+',top='+oben );
    jobtvfenster.focus();
}