/*
	==================================================
	menu.js hides and shows the menus
	==================================================
*/

function showSection(id) {
  var pc = document.getElementById("primaryContent");
  var divs = pc.getElementsByTagName("div");
  for (var i=0; i<divs.length; i++ ) {
    if (divs[i].className.indexOf("section") == -1) continue;
    if (divs[i].getAttribute("id") != id) {
      divs[i].style.display = "none";
    } else {
      divs[i].style.display = "block";
    }
  }
}

function prepareInternalnav() {
  if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  if (!document.getElementById("menus")) return false;
  var nav = document.getElementById("menus");
  var links = nav.getElementsByTagName("a");
  for (var i=0; i<links.length; i++ ) {
    var sectionId = links[i].getAttribute("href").split("#")[1] + "_div";
    if (!document.getElementById(sectionId)) continue;
    document.getElementById(sectionId).style.display = "none";
    links[i].destination = sectionId;
    links[i].onclick = function() {
      showSection(this.destination);
      return false;
    } 
  }
  
  // remove all back to top links at end of each bio
  var p_array = document.getElementById("primaryContent").getElementsByTagName( "p" );
  // loop thru array removing p tags with a class of goToTop
  for ( var j=0,k=p_array.length,this_link; j<k; j++) {
  	this_link = p_array[j];
  	if (this_link.className.search(/goToTop/) == -1) continue;
  	//this_link.parentNode.removeChild(this_link);
  	this_link.style.display="none";
  }
}

addLoadEvent(prepareInternalnav);