IE and Firefox compatible javascript to reference innerText/text attribute

function getObjInnerText(obj){
  if (document.all) { // IE;
    return obj.innerText;
  }
  else{
    if (obj.text)
    {
      return obj.text;
    }
    else
      alert("Error: This application does not support your browser.  Try again using IE or Firefox.");
  }
}