function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function insertAfter(newElement,targetElement) {
  var parent = targetElement.parentNode;
  if (parent.lastChild == targetElement) {
    parent.appendChild(newElement);
  } else {
    parent.insertBefore(newElement,targetElement.nextSibling);
  }
}

function addClass(element,value) {
  if (!element.className) {
    element.className = value;
  } else {
    newClassName = element.className;
    newClassName+= " ";
    newClassName+= value;
    element.className = newClassName;
  }
}

function highlightPage() {
  if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  if (!document.getElementById("navigation")) return false;
  var nav = document.getElementById("navigation");
  var links = nav.getElementsByTagName("a");
  for (var i=0; i<links.length; i++) {
    var linkurl = links[i].getAttribute("href");
    var currenturl = window.location.href;
    if (currenturl.indexOf(linkurl) != -1) {
      links[i].className = "here";
      var linktext = links[i].lastChild.nodeValue.toLowerCase();
      document.body.setAttribute("id",linktext);
    }
  }
}

function addImageRollover() {
	if(!document.getElementById) return false;
	if(!document.getElementById("hd_pics")) return false;

	if(!document.getElementsByTagName) return false;

	var rows = document.getElementById("hd_pics");
	var images = rows.getElementsByTagName("img");

	images[0].onmouseover = function() {
		addHdMouseover("hd_link0");
    }
	images[0].onmouseout = function() {
		removeHdMouseover("hd_link0");
    }
	images[1].onmouseover = function() {
		addHdMouseover("hd_link1");
    }
	images[1].onmouseout = function() {
		removeHdMouseover("hd_link1");
    }
	images[2].onmouseover = function() {
		addHdMouseover("hd_link2");
    }
	images[2].onmouseout = function() {
		removeHdMouseover("hd_link2");
    }
	images[3].onmouseover = function() {
		addHdMouseover("hd_link3");
    }
	images[3].onmouseout = function() {
		removeHdMouseover("hd_link3");
    }
	images[4].onmouseover = function() {
		addHdMouseover("hd_link4");
    }
	images[4].onmouseout = function() {
		removeHdMouseover("hd_link4");
    }
}

function addHdMouseover(target) {
	var element = document.getElementById(target);
	element.setAttribute("class","hd_mouseover");
}

function removeHdMouseover(target) {
	var element = document.getElementById(target);
	element.setAttribute("class",null);
}

function setFocus() {
	if(!document.getElementById) return false;
	if(!document.getElementById("loginname")) return false;
	var item = document.getElementById("loginname");
	if (item.getAttribute("value")) {
		document.getElementById("password").focus();
	} else {
		document.getElementById("loginname").focus();
	}
}

function setOtherFocus() {
	if(!document.getElementById) return false;
	if(!document.getElementById("startfocushere")) return false;
	document.getElementById("startfocushere").focus();
}

addLoadEvent(addImageRollover);
addLoadEvent(setFocus);
addLoadEvent(setOtherFocus);