function CLASS_MSN_MESSAGE(id,width,height,caption,title,message,target,action){   

          this.id       = id;   

          this.title    = title;   

          this.caption = caption;   

          this.message = message;   

          this.target   = target;   

          this.action   = action;   

          this.width    = width?width:200;   

          this.height   = height?height:120;   

          this.timeout = 150;   

          this.speed    = 20;   

          this.step     = 1;   

          this.right    = screen.width -1;   

          this.bottom   = screen.height;   

          this.left     = this.right - this.width;   

          this.top      = this.bottom - this.height;   

          this.timer    = 0;   

          this.pause    = false;  

          this.close    = false;  

          this.autoHide = true;  

       }   

        

       /**  

       * 隐藏消息方法   

       */   

       CLASS_MSN_MESSAGE.prototype.hide = function(){   

          if(this.onunload()){   

              var offset = this.height>this.bottom-this.top?this.height:this.bottom-this.top;   

              var me = this;   

              if(this.timer>0){     

                  window.clearInterval(me.timer);   

    &n