// JavaScript Document
 var n4, ie, w3c;
 
 function init() {
  n4 = document.layers;
  ie = document.all;
  w3c = document.documentElement;
 }     
 
 function showNav() {
  	if(ie) {
        	document.all.naviBar.style.visibility = 'visible';
  	}   
  	else {
  	  	alert('This site is not compatible with your browser!');
  	 }
 }       
 function hideNav () {
 	if(ie) {
 	    document.all.naviBar.style.visibility = 'hidden';
 	}
  	else {
              alert('This site is not compatible with your browser!'); 
        }
 }