for each (var curGra:Graphic in graphicslayer.graphicProvider)                        {                            clearBtnVisible=true;                            var temGra:Graphic=null;                            switch (curGra.geometry.type)                            {                                case Geometry.EXTENT:                                {                                    var tgeom:Geometry=curGra.geometry;                                    var points:Array=new Array();                                    var temppoint:MapPoint=new MapPoint(tgeom.extent.xmin, tgeom.extent.ymin);                                    points.push(temppoint);                                    temppoint=new MapPoint(tgeom.extent.xmin, tgeom.extent.ymax);                                    points.push(temppoint);                                    temppoint=new MapPoint(tgeom.extent.xmax, tgeom.extent.ymax);                                    points.push(temppoint);                                    temppoint=new MapPoint(tgeom.extent.xmax, tgeom.extent.ymin);                                    points.push(temppoint);                                    temppoint=new MapPoint(tgeom.extent.xmin, tgeom.extent.ymin);                                    points.push(temppoint);                                    var polygeo_ext:Polygon=new Polygon();                                    polygeo_ext.addRing(points);                                    temGra=new Graphic(polygeo_ext, curGra.symbol);                                    break;                                }                                case Geometry.POLYGON:                                {                                    var polygeo_poly:Polygon=new Polygon();                                    var polygeo:Polygon=curGra.geometry as Polygon;                                    for each (var ring:Array in polygeo.rings)                                    {                                        var temring:Array=[];                                        for (var i:int=0; i < ring.length; i++)                                        {                                            var tempt_ring:MapPoint=ring[i] as MapPoint;                                            temring.push(new MapPoint(tempt_ring.x, tempt_ring.y));                                        }                                        polygeo_poly.addRing(temring);                                    }                                    temGra=new Graphic(polygeo_poly, curGra.symbol);                                    break;                                }                                case Geometry.MAPPOINT:                                {                                    var mpt_tem:MapPoint=curGra.geometry as MapPoint;                                    temGra=new Graphic(new MapPoint(mpt_tem.x, mpt_tem.y), curGra.symbol, curGra.attributes);                                    break;                                }                                case Geometry.POLYLINE:                                {                                    var polylinegeo_poly:Polyline=new Polyline();                                    var polylinegeo:Polyline=curGra.geometry as Polyline;                                    for each (var path:Array in polylinegeo.paths)                                    {                                        var tempath:Array=[];                                        for (var j:int=0; j < path.length; j++)                                        {                                            var tempt_path:MapPoint=path[j] as MapPoint;                                            tempath.push(new MapPoint(tempt_path.x, tempt_path.y));                                        }                                        polylinegeo_poly.addPath(tempath);                                    }                                    temGra=new Graphic(polylinegeo_poly, curGra.symbol);                                    break;                                }                            }                            temGra.autoMoveToTop=false;                            graLyr.add(temGra);                        }