function apriVideo(tipo,anno,id) { 

	str="php/video_viewer/viewer.php?tipo="+tipo+"&anno="+anno+"&id="+id;
	finestra="video"+id;
	alt=500;
	larg=500; 
	dist_top=(screen.height/2)-(alt/2); 
	dist_left=(screen.width/2)-(larg/2); 

	searchWin = window.open(str,finestra,'top='+dist_top+',left='+dist_left+',scrollbars=yes,width='+larg+',height='+alt+',resizable=yes,status=no,location=no,toolbar=no'); 
}