// Cookie file
function getCookie (name) 
{
	var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
	while (i < clen) 
	{
		var j = i + alen;
	  if (document.cookie.substring(i, j) == arg)
    {
			return getCookieVal (j);
		}
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0)
		{
			break;
		}
  }
	return null;
}

function getCookieVal (offset) {  
	var endstr = document.cookie.indexOf (";", offset);  
	if (endstr == -1)    
		endstr = document.cookie.length;  
		return unescape(document.cookie.substring(offset, endstr));
}

function setCookie (name, value) 
{  
	var argv = setCookie.arguments;  
	var argc = setCookie.arguments.length;  
	var expires = (argc > 2) ? argv[2] : null;  
	var path = (argc > 3) ? argv[3] : null;  
	var domain = (argc > 4) ? argv[4] : null;  
	var secure = (argc > 5) ? argv[5] : false;  
	document.cookie = name + "=" + escape (value) + 
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
	((path == null) ? "" : ("; path=" + path)) +  
	((domain == null) ? "" : ("; domain=" + domain)) +    
	((secure == true) ? "; secure" : "");
}