highlight keyword for table

function highLightKeyWord(eTable,strKeyWord,className){
  var rows = eTable.rows;
  var oRegExp = new RegExp("" + strKeyWord + "","g");
  for(var i=0,rl=rows.length;i<rl;i++){
    var r = rows.item(i);
    for(var j=0,tl=r.cells.length;j<tl;j++){
      var innerText = r.cells.item(j).innerHTML;
	  var tmp = innerText.replace(oRegExp,"<span class='"+className+"'>"+strKeyWord+"</span>");
	  r.cells.item(j).innerHTML = tmp;
    }
  }
}