How can I attach dhtmlxToolBar to grid header

I need to attach dhtmlxToolbar to dhtmlxGrid header…I m using attachToObj but its giving error as obj.appendChild is not a function.Its need to be done urgently.Please do provide solution

Below is my code:

var backlog_grid=null;

function backlogResponse(loader)

{ dhxWins.window(“w1”).setDimension(1000, 435);

if(loader.xmlDoc.responseText!= null)

            {    

         

                if(tab&&document.getElementById(‘tab_backLog_contents’).style.display==“none”)

                {

                 tab.addTab(“a2”,“BackLog Summary”,“150px”);    

                 tab.enableAutoSize(false,true);

                }

                document.getElementById(‘tab_backLog_contents’).style.display=“block”;    

                document.getElementById(‘toolbarObj’).style.display=“block”;

                tab.setSkin(“light”) ;

                tab.showTab(“a2”);

                tab.setTabActive(“a2”);

                tab.setContent(“a2”,“tab_backLog_contents”);    

                var webBar = new dhtmlXToolbarObject(“toolbarObj”);

     webBar.setIconsPath("/TSTVMZ/dhtmlxToolbar/images/");

             backlog_grid= new dhtmlXGridObject(“tab_backLog_contents”);

                backlog_grid.setImagePath(uri+‘dhtmlxGrid/codebase/imgs/icons_greenfolders/’);

                backlog_grid.setHeader(",") ;

                backlog_grid.setInitWidths(“70,70,150,100,80,80,80,80,80,80,*”);

                backlog_grid.setColAlign(“center,center,left,left,right,right,right,right,right,center,center”);

                backlog_grid.setColTypes(“ro,ro,ro,ro,ro,link,link,link,link,link,link”);

                backlog_grid.setSkin(“light”);                

                backlog_grid.enableAutoHeight(true);

                backlog_grid.enableSmartRendering(true,50);

                backlog_grid.setColSorting(“str,int,str,str,int,int,int,int,int,int,str”);

                backlog_grid.init();

                backlog_grid.attachToObject(webBar);

                backlog_grid.loadXMLString(loader.xmlDoc.responseText);    

                var grantTotalBk = backlog_grid.getUserData(“0”,“grantTotalBk”);

var grantBkAmt = backlog_grid.getUserData(“0”,“grantBkAmt”);

                var grantBackAmt = backlog_grid.getUserData(“0”,“grantBackAmt”);

                var grantRevenue = backlog_grid.getUserData(“0”,“grantrevenue”);

                var grantTmDelta = backlog_grid.getUserData(“0”,“grantTmDelta”);                

                //var footerData = “Grand Total,#cspan,#cspan,#cspan,”+‘1827964.00’+"",#cspan";

                //alert(footerData);

                //backlog_grid.attachFooter(footerData);

                dhxWins.window(“w1”).progressOff();

                tab.enableAutoReSize(false) ;                

            }

             tab.setOnSelectHandler(onSelectTab);

}

attachToObject method of grid can be used to attach grid to some HTML container on the page, it can’t be used for linking grid and toolbar.
You can change your code as

backlog_grid.setHeader("

,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan") ;
… grid init code
backlog_grid.init();
var webBar = new dhtmlXToolbarObject(“toolbarObj”);
… toolbar init code