页面本地缓存和Cookie缓存

Web.storage = {
isStorageSupported: function () {
try {
return window.localStorage;
} catch (err) {
return false;
}
},
getstore: function (name) {
var a = this;
if (a.isStorageSupported) {
return localStorage.getItem(name);
}
else {
return a.getCookie(name);
}
},
setstore: function (name, value) {
var a = this;
if (a.isStorageSupported) {
localStorage.setItem(name, value);
}
else {
a.setCookie(name, value);
}
},
delstore: function (name) {
var a = this;
if (a.isStorageSupported) {
localStorage.removeItem(name);
}
else {
a.delCookie(name);
}
},
clearstore: function () {
var a = this;
if (a.isStorageSupported) {
localStorage.clear();
}
else {
a.clearCookie();
}
},
getCookie: function (name) {
var cookie_start = document.cookie.indexOf(name + "="),
cookie_end = document.cookie.indexOf(";", cookie_start);
return -1 == cookie_start ? "" : unescape(document.cookie.substring(cookie_start + name.length + 1, cookie_end > cookie_start ? cookie_end : document.cookie.length))
},
setCookie: function (name, value, isSession) {
var expires = new Date;
expires.setTime(expires.getTime() + 2592e6);
var path_domain = "; path=/" + (-1 != document.domain.indexOf("vdian.com") ? "; domain=vdian.com" : -1 != document.domain.indexOf("koudai.com") ? "; domain=koudai.com" : -1 != document.domain.indexOf("weidian.com") ? "; domain=weidian.com" : "");
if ("object" == typeof name) for (var v in name) {
var cookie_content = escape(v) + "=" + escape(name[v]);
document.cookie = cookie_content + "; expires=" + expires.toGMTString() + path_domain
} else {
var cookie_content = escape(name) + "=" + escape(value);
document.cookie = cookie_content + (isSession ? "" : "; expires=" + expires.toGMTString()) + path_domain
}
},
delCookie: function (name) {
var path_domain = "; path=/" + (-1 != document.domain.indexOf("vdian.com") ? "; domain=vdian.com" : -1 != document.domain.indexOf("koudai.com") ? "; domain=koudai.com" : -1 != document.domain.indexOf("weidian.com") ? "; domain=weidian.com" : "");
document.cookie = escape(name) + "=; expires=" + new Date(0).toUTCString() + path_domain;
try {
"M_b_id" === name && VTrace && VTrace.setFuncTrace("delCookie_id", !0)
} catch (e) { }
},
clearCookie: function () {
var _keys = document.cookie.match(/[^ =;]+(?=\=)/g);
if (_keys) for (var l = _keys.length,
i = l; i--;) M.delCookie(_keys[i]);
try {
VTrace && VTrace.setFuncTrace("clearCookie", !0)
} catch (e) { }
}
}