var caution = false 
	function setCookie(name, value, expires, path, domain, secure) { 
	var curCookie = name + "=" + escape(value) + 
	((expires) ? "; expires=" + expires.toGMTString() : "") + 
	((path) ? "; path=" + path : "") + 
	((domain) ? "; domain=" + domain : "") + 
	((secure) ? "; secure" : "") 
	if (!caution || (name + "=" + escape(value)).length <= 4000) 
	document.cookie = curCookie 
	else 
	if (confirm("Cookie exceeds 4KB and will be cut!")) 
	document.cookie = curCookie 
	} 
	function deleteCookie(name, path, domain) { 
	if (getCookie(name)) { 
	document.cookie = name + "=" + 
	((path) ? "; path=" + path : "") + 
	((domain) ? "; domain=" + domain : "") + 
	"; expires=Thu, 01-Jan-70 00:00:01 GMT" 
	} 
	} 

	function getCookie(name) { 
	var prefix = name + "=" 
	var cookieStartIndex = document.cookie.indexOf(prefix) 
	if (cookieStartIndex == -1) 
	return null 
	var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length) 
	if (cookieEndIndex == -1) 
	cookieEndIndex = document.cookie.length 
	return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex)) 
	}