var preload = new Array ('home.gif','about.gif','grants.gif','events.gif','initiatives.gif','directory.gif','join.gif','contact.gif');
var imgs = new Array ();
for (var i = 0; i < preload.length; i ++)
	{
	imgs[i] = new Image ();
	imgs[i].src = 'images/buttons/pressed/' + preload[i];
	}
function showIt(object) {
  if (document.getElementById) {
      document.getElementById(object).style.visibility = 'visible';
  }
  else if (document.layers && document.layers[object] != null) {
      document.layers[object].visibility = 'visible';
  }
  else if (document.all) {
      document.all[object].style.visibility = 'visible';
  }
  return false;
}

function hideIt(object) {
  if (document.getElementById) {
      document.getElementById(object).style.visibility = 'hidden';
  }
  else if (document.layers && document.layers[object] != null) {
      document.layers[object].visibility = 'hidden';
  }
  else if (document.all) {
      document.all[object].style.visibility = 'hidden';
	}
  return false;
}

function $ (which)
	{
	return document.getElementById (which);
	}
function over ()
	{
	var img = this.getElementsByTagName ('img')[0];
	img.src = img.src.replace ('normal', 'pressed');
	}
function out ()
	{
	var img = this.getElementsByTagName ('img')[0];
	img.src = img.src.replace ('pressed', 'normal');
	}
function add_rollovers (node)
	{
	var links = node.getElementsByTagName ('a');
	var l_len = links.length;
	
	for (var i = 0; i < l_len; i ++)
		{
		links[i].onmouseover = over;
		links[i].onmouseout = out;
		}
	}
	
function addHover (which) 
	{
	var navRoot = document.getElementById(which);
	for (i=0; i < navRoot.childNodes.length; i++) 
		{
		var node = navRoot.childNodes[i];
		if (node.nodeName == "LI") 
			{
			node.onmouseover = function() 
				{
				this.className += " over";
				}
			node.onmouseout = function() 
				{
				this.className = this.className.replace(" over", "");
				}
			}
		}
	}