function wszystko() // 1 visible, 0 hidden
{
    if(document.layers)	   //NN4+
    {
       document.pizzza.visibility = "hide";
	   document.salatki.visibility = "hide";
	   document.makarony.visibility = "hide";	   
	   document.dodatki.visibility = "hide";
    }
   else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
       document.getElementById('pizzza').style.visibility = "hidden";
	   document.getElementById('salatki').style.visibility = "hidden";
     document.getElementById('makarony').style.visibility = "hidden";
	 document.getElementById('dodatki').style.visibility = "hidden";
  }
   else if(document.all)	// IE 4
   {
       document.all.pizzza.style.visibility = "hidden";
	   document.all.salatki.style.visibility = "hidden";
       document.all.makarony.style.visibility = "hidden";
	   document.all.dodatki.style.visibility = "hidden";
   }
}



function toggleBox(szDivID, iState) // 1 visible, 0 hidden
{

        var obj = document.getElementById(szDivID);
        obj.style.visibility = iState ? "visible" : "hidden";


}