EasyUI window窗口防止越界问题

$("#createSchoolWindow").window({
        onMove:function(left,top){
            //console.log(this.left+" - "+top);
            if(left<0){
                $("#createSchoolWindow").window("move",{left:0});
            }
            if(top<0){
                $("#createSchoolWindow").window("move",{top:0});
            }
        },
        onResize:function(width, height){
            var w=$(window).width();//可视宽度
            var h=$(window).height();//可视高度
            var left=$("#createSchoolWindow").window("options").left;//窗体左边距离
            var top=$("#createSchoolWindow").window("options").top;//窗体右边距离
            if((width+left)>w){
                $("#createSchoolWindow").window("resize",{width:w-left});
            }
            if((height+top)>h){
                $("#createSchoolWindow").window("resize",{height:h-top});
            }
        }
    });

easyui window用法问题参考：http://www.cnblogs.com/weihengblogs/p/4387239.html