function show(divId, iState) // 1 visible, 0 hidden
{
	//NN4+
    if(document.layers)	   
    {	document.layers[divId].visibility = iState ? "show" : "hide";
    }
    
    //gecko(NN6) + IE 5+
    else if(document.getElementById)	  
    {   var obj = document.getElementById(divId);
        obj.style.visibility = iState ? "visible" : "hidden";
    }
    
    // IE 4
	else if(document.all)	
		document.all[divId].style.visibility = iState ? "visible" : "hidden";

}

function hideMenu()
{
	//NN4+
    if(document.layers)	   
    {	document.layers["submenu1"].visibility = "hide";
	    document.layers["submenu2"].visibility = "hide";
	    document.layers["submenu4"].visibility = "hide";
	    document.layers["submenu5"].visibility = "hide";
    }
    
    //gecko(NN6) + IE 5+
    else if(document.getElementById)	  
    {   var obj1 = document.getElementById("submenu1");
   		var obj2 = document.getElementById("submenu2");
   		var obj3 = document.getElementById("submenu4");
   		var obj4 = document.getElementById("submenu5");
        
        obj1.style.visibility = "hidden";
        obj2.style.visibility = "hidden";
        obj3.style.visibility = "hidden";
        obj4.style.visibility = "hidden";
    }
    
    // IE 4
	else if(document.all)	
	{	document.all["submenu1"].style.visibility = "hidden";
		document.all["submenu2"].style.visibility = "hidden";
		document.all["submenu4"].style.visibility = "hidden";
		document.all["submenu5"].style.visibility = "hidden";
	}
}