tnmenu = {
		show: function(id) {
    		idStr = (id).toString().toLowerCase().replace(/tn_/,"tnmenu_");
        	getStyRef(idStr).display = "block";
		},
    	hide: function(id) {
        	idStr = (id).toString().toLowerCase().replace(/tn_/,"tnmenu_");
        	getStyRef(idStr).display = "none";
    	}
	}