var Fens;
	
	links = ((screen.width/2)-(580/2)) + 5;
  oben = ((screen.height/2)-(500/2)) + 20;

	function fncShowPicture(a) {						
			
			Fens = window.open('./../include/details.php?file=' + a,'ShowPicture','width=580,height=500,left='+ links +',top='+ oben +',scrollbars=yes');
			Fens.focus();
	}