function replaceText(el, text) {
  if (el != null) {
    clearText(el);
    var newNode = document.createTextNode(text);
    el.appendChild(newNode);
  }
}

function clearText(el) {
  if (el != null) {
    if (el.childNodes) {
      for (var i = 0; i < el.childNodes.length; i++) {
        var childNode = el.childNodes[i];
        el.removeChild(childNode);
      }
    }
  }
}

function getText(el) {
  var text = "";
  if (el != null) {
    if (el.childNodes) {
      for (var i = 0; i < el.childNodes.length; i++) {
        var childNode = el.childNodes[i];
        if (childNode.nodeValue != null) {
          text = text + childNode.nodeValue;
        }
      }
    }
  }
  return text;
}

function removeFontStyling()
{
    var spans = document.getElementsByTagName("span");	

    for (var x = 0; x < spans.length; x++)
    {
	spans[x].style.fontSize = null;
	spans[x].style.fontFamily = null;
	spans[x].style.color = null;
    }

    var fonts = document.getElementsByTagName("font");	

    for (var x = 0; x < fonts.length; x++)
    {
	fonts[x].style.fontSize = null;
	fonts[x].style.fontFamily = null;
	fonts[x].size = null;
	fonts[x].face = null;
    }

    var divs = document.getElementsByTagName("div");	

    for (var x = 0; x < divs.length; x++)
    {
	divs[x].style.fontSize = null;
	divs[x].style.fontFamily = null;
	divs[x].style.margin = null;
    }

    var ps = document.getElementsByTagName("p");	

    for (var x = 0; x < ps.length; x++)
    {
	ps[x].style.fontSize = null;
	ps[x].style.fontFamily = null;
	ps[x].style.margin = null;
    }
}