RoundCorner={};
RoundCorner.attach=function(item) {
  var container=document.createElement("div")
  container.className="cornerContainer"
  var corner1=document.createElement("img")
  corner1.className="topCorner"
  var corner2=document.createElement("img")
  corner2.className="bottomCorner"
  if (item.className.match(/YellowBox/))
  {
    corner1.src="../images/corner_yellow.jpg";
    corner2.src="../images/corner_yellow_bottom.jpg";  
  }
  else
  {
    corner1.src="../images/corner_blue.jpg";
    corner2.src="../images/corner_blue_bottom.jpg";  
  }
  container.appendChild(corner1);
  container.appendChild(corner2);
  item.parentNode.replaceChild(container,item);
  item.className=item.className.replace(/RoundCorner/,'');
  container.appendChild(item);
}
RoundCorner.init=function() {
  var elements=document.getElementsByTagName("*");
  for (var i=0;i<elements.length;++i)
  {
    var item=elements.item(i);
    if (item.className.match(/RoundCorner/))
    {
      RoundCorner.attach(item)
    }
  }
}
RoundCorner.init();