custom subgrid

http://crmgreenbible.blogspot.com/2011/07/crm-2011-change-subgrid-fetchxml.html?showComment=1323769454782#c6726673693537380750

or

LoadSubGrid : function () {

        var entityId= Xrm.Page.data.entity.getId();
        var  new_lookupattribute = Xrm.Page.getAttribute("new_lookupattribute").getValue();
        var  new_lookupattributeId = null;
        if ( new_lookupattribute ) {
              new_lookupattributeId =  new_lookupattribute [0].id;
        }


        var fetchXml = "<fetch version=\"1.0\" output-format=\"xml-platform\" mapping=\"logical\" distinct=\"false\">";
        fetchXml = fetchXml + "<entity name=\"new_entity\">";
        fetchXml = fetchXml + "<attribute name=\"new_attribute1\" />";
        fetchXml = fetchXml + "<attribute name=\" new_attribute2\" />";
        fetchXml = fetchXml + "<attribute name=\" new_attribute3\" />";
        fetchXml = fetchXml + "<link-entity name=\"new_entity2\" from=\"new_entityid\" to=\"new_entity2id\" visible=\"false\" link-type=\"outer\" alias=\"a_1ee52836f351e11198888asasd450361\">";
        fetchXml = fetchXml + "<attribute name=\"new_entity2attribute\" />";
        fetchXml = fetchXml + "</link-entity>";
        fetchXml = fetchXml + "<filter type=\"and\">";
        fetchXml = fetchXml + "<condition attribute=\"new_attriubteid\" operator=\"eq\" uiname=\"ds32\" uitype=\"new_entity3\" value=\"" +  entityId + "\" />";
        if ( new_lookupattributeId) {
            fetchXml = fetchXml + "<condition attribute=\"new_entity4id\" operator=\"eq\" uiname=\"entity4\" uitype=\"new_Entity4\" value=\"" +  new_lookupattributeId + "\" />";
        }


        fetchXml = fetchXml + "</filter>";
        fetchXml = fetchXml + "</entity>";
        fetchXml = fetchXml + "</fetch>";


        PopulateGridFetchXML("LoadSubGrid()", 'SubGridName', fetchXml);
    }




PopulateGridFetchXML: function (sourceFunctionName, subGrid, fetchXML) {
        var updateXml = function (sourceFunctionName, subGrid, field, fetchXML) {
            try {
                if (Xrm.Page.getControl(subGrid)._control.get_innerControl() == null) {
                    setTimeout(sourceFunctionName, 1000);
                    return;
                }
                Xrm.Page.getControl(subGrid)._control.get_innerControl().setParameter(field, fetchXML);
                // Refresh the grid
                Xrm.Page.getControl(subGrid).refresh();
            } catch (e) { }
        };
        // Update the fetchXml
        updateXml(sourceFunctionName, subGrid, "fetchXml", fetchXML);
    }