PicWnd = "";

function zoom(nazwa)
{      	
	  if (PicWnd)
	     { if (PicWnd.closed) {PicWnd=0} 
	  	   else    {PicWnd.document.close();
	                PicWnd.window.close();
	    			PicWnd=0;}
		 }		
				
    PicWnd=window.open("fota.php?z="+nazwa, "", "toolbar=no, menubar=no, location=no, personalbar=no, status=no, resizable=no, scrollbars=no, copyhistory=no, width=426, height=640");  	                      
   if (window.focus) {PicWnd.focus();}	
}