javascript Cookie管理-JAVA91知识库

javascript Cookie管理

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function setCookie(name,value,expiry,path,domain,secure){ 
	var nameString = name + "=" + value; 
	var expiryString = (expiry == null) ? "" : " ;expires = "+ expiry.toGMTString(); 
	var pathString = (path == null) ? "" : " ;path = "+ path; 
	var domainString = (path == null) ? "" : " ;domain = "+ domain; 
	var secureString = (secure) ?";secure" :""; 
	document.cookie = nameString + expiryString + pathString + domainString + secureString; 
}

function getCookie (name) { 
	var CookieFound = false; 
	var start = 0; 
	var end = 0; 
	var CookieString = document.cookie; 
	var i = 0; 	
	while (i <= CookieString.length) { 
		start = i ; 
		end = start + name.length; 
		if (CookieString.substring(start, end) == name){ 
			CookieFound = true; 
			break; 	
		} 
		i++; 
	}

if (CookieFound){ 
		start = end + 1; 
		end = CookieString.indexOf(";",start); 
		if (end < start) 
			end = CookieString.length; 
		return unescape(CookieString.substring(start, end)); 
	} 
	return ""; 
}

function deleteCookie(name){ 
	var expires = new Date(); 
	expires.setTime (expires.getTime() - 1); 	
	setCookie( name , "Delete Cookie", expires,null,null,false); 
}