js获取Cookie，获取url参数

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function getCookie(name) {

    var strCookie = document.cookie;

    var arrCookie = strCookie.split("; ");

    for (var i = 0; i < arrCookie.length; i++) {

        var arr = arrCookie[i].split("=");

        if (arr[0] == name) return arr[1];

    }

    return "";

}

(function ($) {

    $.getUrlParam = function (name) {

        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");

        var r = window.location.search.substr(1).match(reg);

        if (r != null) return decodeURI(r[2]); return null;

    }

})(jQuery);