function clearNavBorderBottom(id) {
  var m=$(id);
  try{
    var ms=m.previousSibling;
    if(ms.tagName == 'LI') {
      ms.style.backgroundImage = 'none';
    }
  } catch(e) {
    try {
      var mp=m.parentNode;
      if(mp.tagName == 'UL') {
        mp.style.backgroundImage = 'none';
      }
    } catch(e) {
    }
  }
}

function fixLastElementAtBottomMargin() {
  try {
    IE6 = Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5)) == 6;
    if (!IE6) {
      var e = $('main_content');
      if(e.className == 'three_teaser') {

        var divs = $$('#main_content.three_teaser div.Default');

        last = divs.length-1;
        for( var i=last; i>=0; i-- ) {

          if(divs[i].innerHTML.length) {
            divs[i].addClassName('no_margin');
            break;
          }
        }
        return;
      }
    }
  } catch(error) {
    return;
  }
}