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