obrazek1 = new Image();
   obrazek1.src = "gfx/menu/1_1.jpg";
   obrazek2 = new Image();
   obrazek2.src = "gfx/menu/2_1.jpg";
   obrazek3 = new Image();
   obrazek3.src = "gfx/menu/3_1.jpg";
   obrazek4 = new Image();
   obrazek4.src = "gfx/menu/4_1.jpg";
   obrazek5 = new Image();
   obrazek5.src = "gfx/menu/5_1.jpg"; 
   obrazek6 = new Image();
   obrazek6.src = "gfx/menu/6_1.jpg";
   obrazek7 = new Image();
   obrazek7.src = "gfx/menu/7_1.jpg";
   obrazek8 = new Image();
   obrazek8.src = "gfx/menu/8_1.jpg";
   obrazek9 = new Image();
   obrazek9.src = "gfx/menu/9_1.jpg";

	
	
function showhide(eid)
{
var element = document.getElementById(eid);



if (element.style.display == "none")
   {
   element.style.opacity == '100';
   element.style.display = "";
  
   } else
   {
   element.style.opacity == '0';
   element.style.display = "none";
  
   }

}