function GoUrl(s)

        {       var d = s.options[s.selectedIndex].value
                window.top.location.href = d
                s.selectedIndex = 0
        }
        
function showMenu(menuName) {
    if (document.getElementById) {
    	document.getElementById(menuName).style.visibility = "visible";
    }
    
    else if (document.layers) {
		document.layers[menuName].visibility = "visible";
	}
	
	else {
		document.all[menuName].style.visibility = "visible";
	}
}

function hideMenu(menuName) {
    if (document.getElementById) {
    	document.getElementById(menuName).style.visibility = "hidden";
    }
    
    else if (document.layers) {
		document.layers[menuName].visibility = "hidden";
	}
	
	else {
		document.all[menuName].style.visibility = "hidden";
	}
}

ns4 = (document.layers)? true:false;
ie4 = (document.all)? true:false;
ns6 = (document.getElementById)? true:false;