How to define Row Header Styles individual - Guess I am almost there...

I am setting row headers (labels for each row) with the following function:
obj.setRowProperty("text", 
      function(i){
        return reportData[i][1];
      }
    );
  I need to format specific row headers differently, for example in bold. Is there a way to define that (I am almost certain there is one, considering how powerful the ActiveWidget Grids is).

I am using for individual row formatting the following, and probably there is something similar to set the column header, but I cannot figure it out right now:

var rowFontWeightTotals = function() {
     var rowIndex = this.getProperty("row/index");
     var val = reportData[rowIndex][0];
        //alert(val);
     if( val == 'Total' ){
       return "bold";
     }
  }

var row = new Active.Templates.Row;

  row.setStyle("font-weight", rowFontWeightTotals);
  obj.setTemplate("row", row);