通过JAVASCRIPT读取ASP设定的COOKIE_javascript技巧

String.prototype.get = function(name){
var reg = new RegExp("(^|&|\\?)" + name + "=([^&]*)(&|$)"),r;
if(r=this.match(reg))
return unescape(r[2]);
return null;
}

//获取并返回 cookie 值
//不区分 cookieName 的大小写
//dfltValue 为默认返回值
//不考虑子键
function RequestCookies(cookieName)
{
var lowerCookieName = cookieName.toLowerCase();
var cookieStr = document.cookie;

if (cookieStr == "")return "";

var cookieArr = cookieStr.split("; ");
var pos = -1;
for (var i=0; i pos = cookieArr[i].indexOf("=");
if (pos > 0) {
if (cookieArr[i].substring(0, pos).toLowerCase() == lowerCookieName)
{
return unescape(cookieArr[i].substring(pos+1, cookieArr[i].length));
}
}
}

return "";
}

document.write("读取名称为 ab 的 cookie..." + RequestCookies("Cookie1").get("key1"));
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