//untuk paging row numberer
Ext.namespace('Ext.ux.grid'); // create Ext.ux.grid namespace

// custom RowNumberer for use with paging GridPanels
Ext.ux.grid.PagingRowNumberer = Ext.extend(Ext.grid.RowNumberer, {
  renderer : function(v, p, record, rowIndex, colIndex, store){
	if (this.rowspan) {
	  p.cellAttr = 'rowspan="' + this.rowspan + '"';
	}

	var so = store.lastOptions;
	var sop = so? so.params : null;
	return ((sop && sop.start)? sop.start : 0) + rowIndex + 1;
  }
});
//=======================================================================