js无刷新上传图片及在线切割

       //在setattribute.js里        var resize = new Resize(this.content,this.cut,this._layCutImg.id);        resize.Set("RightDown");        //大家可以扩展resize.Set("RightUp")等，RightDown,RightUp为右上角，右下角div的id        //然后在resize.js里    Set:function(funCase){        var fun;        switch(funCase){            case "RightDown":                fun=this.RightDownMouseDown;                this._obj=id(funCase);                break;            case "RightUp":                fun=this.RightDownMouseUp;//该方法自行添加，这里我就没在做了。                this._obj=id(funCase);                break;            //....            default:break;        }        this.omove = this.bindEvent(this,this.RightDownMouseMove);        this.oup = this.bindEvent(this,this.RightDownMouseUp);        this.addEvent(this._obj,"mousedown",this.bindEvent(this,fun));    },

//调用            var setAttribute = new SetAttribute("content","cut","temp/"+fileUrl,width,height,{"CutHeight":"50px","CutWidth":"50px","CutLeft":"30px","CutTop":"30px",                        "Opacity":"50"});//CutHeight，CutWidth,CutLeft,CutTop,初始化切割层的高度，宽度，距离左边，上边的距离。//要单独运行修改背景图等参数的话可以调用setAttribute.url="xx.jpg";setAttribute.Override();