var xcol_cur_menu = null;
var xcol_cur_submenu = null;
var sxcol_cur_menu = null;
var sxcol_cur_submenu = null;
function show(id)
{
    if (!isDOMcompliant()) { return; }
    var menu = document.getElementById("Menu" + id);
    var menus = document.getElementById("NavMenuList");
    var submenu = menus.getElementsByTagName("ul").item(id);
	if (sxcol_cur_submenu == null) {
	} else {
		sxcol_cur_submenu.style.visibility = "hidden";
	}
    if (xcol_cur_submenu == null) {
        submenu.style.visibility = "visible";
    } else {
        xcol_cur_submenu.style.visibility = "hidden";
        submenu.style.visibility = "visible";
    }
    if (xcol_cur_menu == null) {
        menu.style.backgroundColor = "#FFF";
        menu.style.color = "#000";
    } else {
        xcol_cur_menu.style.backgroundColor = "#115588";
        xcol_cur_menu.style.color = "#FFF";
        menu.style.backgroundColor = "#FFF";
        menu.style.color = "#000";
    }
    xcol_cur_menu = menu;
    xcol_cur_submenu = submenu;
}
function showsub(id)
{
    if (!isDOMcompliant()) { return; }
    var smenu = document.getElementById("Submenu" + id);
    var smenus = document.getElementById("ProductList");
    var ssubmenu = smenus.getElementsByTagName("ul").item(id);
	if (ssubmenu == null) {
		if (sxcol_cur_submenu == null) {
		} else {
			sxcol_cur_submenu.style.visibility = "hidden";
		}
	} else {
	    if (sxcol_cur_submenu == null) {
	        ssubmenu.style.visibility = "visible";
	    } else {
	        sxcol_cur_submenu.style.visibility = "hidden";
	        ssubmenu.style.visibility = "visible";
	    }
	}
	if (sxcol_cur_menu == null) {
		smenu.style.backgroundColor = "#FFF";
		smenu.style.color = "#000";
	} else {
		sxcol_cur_menu.style.backgroundColor = "#69C";
		sxcol_cur_menu.style.color = "#FFF";
		smenu.style.backgroundColor = "#FFF";
		smenu.style.color = "#000";
	}
    sxcol_cur_menu = smenu;
    sxcol_cur_submenu = ssubmenu;
}
function isDOMcompliant()
{
    return document.getElementById && document.getElementsByTagName;
}