function toggleDiv(divid){
    if(document.getElementById(divid).style.display == 'block'){
      document.getElementById(divid).style.display = 'none';
    }else{
      document.getElementById(divid).style.display = 'block';
    }
  }

  function expandCollapse(box,divid){
    if(document.getElementById(divid).style.display == 'block'){
		document.getElementById(box).src = "images/toc_expanded.gif";
	}else{
		document.getElementById(box).src = "images/toc_collapsed.gif";
	}
  }