hide grid header

is it possible to hide the header ? (grid)

mygrid.setNoHeader(true);
docs.dhtmlx.com/doku.php?id=dhtm … etnoheader

is that also possible when you use the attach funtion?
because now i still see a header and the xml doesnt load anymore?
(i have no settings / headers in my xml)

                      PatientGrid = dhxTabbar.cells("a1").attachGrid();
	PatientGrid.setSkin("dhx_skyblue");
	PatientGrid.setImagePath("inc/codebase/imgs/");
	PatientGrid.setNoHeader(true);
	PatientGrid.setInitWidths("20,150,200,80,*")
	PatientGrid.setColAlign("left,right,left,left,left")
	PatientGrid.setColSorting("int,int,str,int,str");
	PatientGrid.setColTypes("ro,ro,ro,ro,ro");
	PatientGrid.init();
	PatientGrid.loadXML("inc/xml/list.php?PatNum="+ PatNum +"");
	PatientGrid.enableSmartRendering(true);

ow, when i leave the setheader function it works:

                      PatientGrid = dhxTabbar.cells("a1").attachGrid();
	PatientGrid.setSkin("dhx_skyblue");
	PatientGrid.setImagePath("inc/codebase/imgs/");
	PatientGrid.setHeader(",,,,");
	PatientGrid.setInitWidths("20,150,200,80,*")
	PatientGrid.setColAlign("left,right,left,left,left")
	PatientGrid.setColSorting("int,int,str,int,str");
	PatientGrid.setColTypes("ro,ro,ro,ro,ro");
	PatientGrid.setNoHeader(true);
	PatientGrid.init();
	PatientGrid.loadXML("inc/xml/list.php?PatNum="+ PatNum +"");
	PatientGrid.enableSmartRendering(true);

Yes, you have to use setHeader() method event if you are using setHoNeader() method