function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (typeof element == 'string')
    element = document.getElementById(element);
  return element
}

function RemoveNavigationBackgrounds(el){
   cleanWhitespace(el);
   el.childNodes[0].style.backgroundImage="none";
}

function cleanWhitespace(element) {
   var node = element.firstChild;
   while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
         element.removeChild(node);
      node = nextNode;
   }
   return element;
}

function PageLoad(){
   RemoveNavigationBackgrounds($('mainNav'));
}

window.load = PageLoad();