function apriIMG(img)
{
   window.open ('img.php?img='+ img , 'aa', 'screenX=200,screenY=400, width=300, height=200')  ;
}

function apri(cosa)
{
   window.open (cosa , 'new', 'left=400,top=200, width=500, height=400,scrollbars=yes')  ;
}

function apriXY(cosa,x,y)
{
   window.open (cosa , 'new', 'left=0,top=0, width='+x+', height='+y+',scrollbars=yes')  ;
}