function slideNews(elementId, headerElement)
{
   var element = document.getElementById(elementId);
   if(element.up == null || element.down)
   {
      animate(elementId, 840, 0, 0, 554, 550, null);
      element.up = true;
      element.down = false;
      headerElement.innerHTML = 'news ->';
   }
   else
   {
      animate(elementId, 840, 0, 160, 554, 550, null);
      element.down = true;
      element.up = false;
      headerElement.innerHTML = '<- news';
   }
}

function slideNav(elementId, headerElement)
{
   var element = document.getElementById(elementId);
   if(element.up == null || element.down)
   {
      animate(elementId, 160, 0, 0, 554, 550, null);
      element.up = true;
      element.down = false;
      headerElement.innerHTML = '<- menu';

   }
   else
   {
      animate(elementId, 0, 0, 160, 554, 550, null);
      element.down = true;
      element.up = false;
      headerElement.innerHTML = 'menu ->';
   }

}