获得 cookie 的值

[javascript]代码库

getCookie: function(c_name){     // 获得 cookie 的值
        if(document.cookie.length>0){
            c_start = document.cookie.indexOf(c_name + "=")
            if(c_start != -1){
                c_start = c_start + c_name.length+1
                c_end = document.cookie.indexOf(";",c_start)
                if(c_end == -1) c_end = document.cookie.length;
                return unescape(document.cookie.substring(c_start,c_end))
            }
        }
        return ""
    }