sfHover = function() {
    
		// dropdown menu
		var navMenu = document.getElementById("navMenu");
		sfHoverAux(navMenu);

		// search box
		var searchBox = document.getElementById("searchBox");
		sfHoverAux(searchBox);
		
    }

	function sfHoverAux (elem)
	{
		if (elem)
		{
			var sfEls = elem.getElementsByTagName("LI");
            for (var i=0; i<sfEls.length; i++) 
			{
                sfEls[i].onmouseover=function() 
				{
                    this.className+=" sfhover";
                    HideProductForms();
                }
                sfEls[i].onmouseout=function() 
				{
                    this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
                    ShowProductForms();
                }
            }
        }	
	}
	
	function HideProductForms() 
	{
	
        var ProductGroupForm = document.forms['formProductGroup'];
        var ProductSearchForm = document.forms['formSearchProducts'];
        
        if (ProductGroupForm)
        {
            ProductGroupForm.style.display = 'none';
        }
        if (ProductSearchForm)
        {
            ProductSearchForm.style.display = 'none';
        }
	}
	
	function ShowProductForms() 
	{
	
        var ProductGroupForm = document.forms['formProductGroup'];
        var ProductSearchForm = document.forms['formSearchProducts'];
        
        if (ProductGroupForm)
        {
            ProductGroupForm.style.display = 'block';
        }
        if (ProductSearchForm)
        {
            ProductSearchForm.style.display = 'block';
        }
	}

    // for compatibility
    function InitMenu() {return true;}

    if (window.attachEvent) window.attachEvent("onload", sfHover);