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;	
	if (argc > 2) {
		var expDays = argv[2];
		var expDate = new Date(); 
		expDate.setTime(expDate.getTime() + (expDays*24*60*60*1000));
		var expires = expDate;
	} else {
		var expires = null;
	}
	var path = (argc > 3) ? argv[3] : null;  
	var domain = (argc > 4) ? argv[4] : null;  
	var secure = (argc > 5) ? argv[5] : false;  
	var sCookie = "";
	document.cookie = name + "=" + escape (value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 	((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : "");
}
function deleteCookie (name) { 
	var argv = deleteCookie.arguments;  
	var argc = deleteCookie.arguments.length;  
	var expDate = new Date();  
	expDate.setTime (expDate.getTime() - 1);
	var expires = expDate;
	var path = (argc > 1) ? argv[1] : null;  
	var domain = (argc > 2) ? argv[2] : null;  
	var secure = (argc > 3) ? argv[3] : false; 
	var value = "null";  
//	var cval = getCookie (name);  
//	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
	document.cookie = name + "=" + escape (value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 	((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : "");

}