(function(){
    var cookieObj={
            'add':function(name, value, hours){ //修改或是添加cookie
                var expire = "";
                if(hours != null){
                    expire = new Date((new Date()).getTime() + hours * 3600000);
                    expire = "; expires=" + expire.toGMTString();
                }               
                document.cookie = name + "=" + escape(value) + expire + ";path=/";
                //如果指定域名可以使用如下
                //document.cookie = name + "=" + escape(value) + expire + ";path=/;domain=findme.wang";
            },
            'get':function(c_name){//读取cookie
                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 "";
            }
    };
    window.cookieObj=cookieObj;}());

cookieObj.add('myWeb','http://www.findme.wang');
console.log('myWeb:'+cookieObj.get('website'));