javascript Cookie管理

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);
}

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