< jsplumb_json.tasks.length;i++){
            var rs=jsplumb_json.tasks[i];
            var tp=rs.type;
            var divId=rs.divId;
            var etl_context=rs.etl_context;
            var positionX=rs.positionX;
            var positionY=rs.positionY;
            cls_str="node node"+tp+"css tasks";
            var color=get_color_by_status(rs.is_disenable);
            console.info("color:"+color);
            $("#m1").append('<div class="'+cls_str+'" style="position: absolute;background: '+color+'"