function Toggle(e){
	  if (e.checked) {
       Highlight(e);
    }
    else {
       Unhighlight(e);
    }
  }
  
  function Highlight(e){
    var r = null;
    if (e.parentNode && e.parentNode.parentNode) {
       r = e.parentNode.parentNode;
	}
    else if (e.parentElement && e.parentElement.parentElement) {
       r = e.parentElement.parentElement;
    }
    if (r) {
       if (r.className == "item1") {
          r.className = "item3";
       }else
       if (r.className == "item2") {
          r.className = "item4";
       }
    }
  }

  function Unhighlight(e){
    var r = null;
    if (e.parentNode && e.parentNode.parentNode) {
       r = e.parentNode.parentNode;

		}
    else if (e.parentElement && e.parentElement.parentElement) {
       r = e.parentElement.parentElement;

    }
    if (r) {
       if (r.className == "item3") {
          r.className = "item1";
       }else
       if (r.className == "item4") {
          r.className = "item2";
       }
    }
  }