function addLoadEvent(func) 
{
  var oldonload = window.onload;
  if (typeof window.onload != 'function') 
  {
    window.onload = func;
  } 
  else 
  {
    window.onload = function() 
    {
      oldonload();
      func();
    }
  }
}

function getCookie(name) 
{
	var start = document.cookie.indexOf(name + '=');
	var len = start + name.length + 1;
	
	if((!start ) && (name != document.cookie.substring(0, name.length))) return null;
	if(start == -1) return null;
	
	var end = document.cookie.indexOf(';', len);
	
	if(end == -1) end = document.cookie.length;
	
	return unescape(document.cookie.substring(len, end));
}

function setCookie(name, value, expires, path, domain, secure) 
{
	var today = new Date();
	today.setTime(today.getTime());
	
	if(expires) 
	{
		expires = expires * 1000 * 60 * 60 * 24;
	}
	
	var expires_date = new Date(today.getTime() + (expires));
	
	document.cookie = name + '=' + escape(value) + 
	((expires) ? ';expires=' + expires_date.toGMTString() : '') + 
	';path=/' + 
	((domain) ? ';domain=' + domain : '') +
	(( secure) ? ';secure' : '');
}

// Netscape 4.* blocking :-(						
var allow_ns4 = getCookie("allow_ns4");
var browser = navigator.appName + "/" + navigator.appVersion;
			
if(browser.indexOf("Netscape/4") > -1 && allow_ns4 != 'true')
{
	window.location = "/ns4/ns4_sorry.html";
}