function MenuHeadJQ(){
  $("#menu li").hover(
    function(){$("#menu li").removeClass("over");$(this).addClass("over");},
    function(){}
  );
  $("#menu li").removeClass("over");
}

function MenuHead(){

if($)
  {
  MenuHeadJQ();
  }
else
  {  
    if (document.all && document.getElementById || 1!=0) {
    	menuHead = document.getElementById("menu");
      for (i=0; i < menuHead.childNodes.length; i++) {
        menuItems = menuHead.childNodes[i];
        if (menuItems.nodeName == "LI") {
          menuItems.onmouseover = 
  	        function overItems(){
  	          this.className += " over";
  	          //ShowHideSelect('hidden') 'v horizontalnim pripade se nemusi skryvat
  		      }
          menuItems.onmouseout = 
          	function outItems(){
  	          this.className = this.className.replace(" over", "");
  	          this.className = this.className.replace("over", "");
  	          //ShowHideSelect('visible')
          	}
        }
      }
    }
  }
}	


//skryje a zobrazi SELECT
function ShowHideSelect(vis){
	sel = document.getElementsByTagName('select');
	for(i = 0; i < sel.length; i++){
    sel[i].style.visibility = vis;
  }
}


function topmenuclick(thi,n,name,classn){
	if (n>=thi && thi>0){
		for(var i=1;i<(n+1);i++){
			if (document.getElementById(name+i)) {
			    el = document.getElementById(name+i)
				
			    el.style.display = 'none'
			  }
		}
		if (document.getElementById(name+thi)) {
		    el = document.getElementById(name+thi)
		    el.style.display = 'block'
		  }
		for(var i=1;i<(n+1);i++){
		if (document.getElementById(name+'X'+i)) {
  			document.getElementById(name+'X'+i).className = classn
		  }
		}
		if (document.getElementById(name+'X'+thi)) {
  			document.getElementById(name+'X'+thi).className = classn+" act"
		  }
	}
}