// JavaScript Document

var currentlySelected = null;;

function showSection (e){
   if (currentlySelected != null){
     currentlySelected.style.display = 'none';
   }
   
  var node = getEventSrc(e);
  tmp = getElementsByClass("expandThis",node.parentNode.parentNode, "div");
  currentlySelected = tmp[0];
  currentlySelected.style.display = 'block';
   
}


function initList()
{
  
    if (arguments.callee.done) return;
 
     // flag this function so we don't do the same thing twice
    arguments.callee.done = true;


	var h4list=document.getElementById('sspanels').getElementsByTagName('a');
        for (i=0; i<h4list.length; i++){
              	addEvent(h4list[i], 'click', showSection);

        }
        
        var allLists = getElementsByClass("expandThis", document, "div");
        
        for (a=0; a<allLists.length; a++){
        	allLists[a].style.display = 'none';
        }
	
}


	
function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}