function ieHover()
{
	var nav = document.getElementById("header");
	if (nav)
	{
		var nodes = nav.getElementsByTagName("li");
		for (var i=0; i<nodes.length; i++)
		{
			nodes[i].onmouseover = function()
			{
				this.className += " hover";
			}
			nodes[i].onmouseout = function()
			{
				this.className = this.className.replace(" hover", "");
			}
		}
	}
}

function detectSafari()
{
	if (navigator.appVersion.indexOf("Safari") != -1){
		if (!window.getComputedStyle) document.body.className += " safari2";
		else document.body.className += " safari3";
	}
}

function initPng()
{
	var images = document.getElementsByTagName("img");
	if (images){
		for (var i = 0; i < images.length; i++){
			if ((images[i].src.indexOf(".png")) != -1){
				var srcname = images[i].src.replace(new RegExp('(.*)\/(.*)?\.png'),"$1/$2");
				images[i].parentNode.style.display = "inline-block";
				images[i].parentNode.style.width = images[i].offsetWidth + "px";
				images[i].style.visibility = "visible";
				images[i].parentNode.style.filter = "progid:dximagetransform.microsoft.alphaimageloader(src='"+ srcname +".png',sizingmethod='crop');"
			}
		}
	}
}

if (window.attachEvent && !window.opera){
	window.attachEvent("onload", ieHover);
	window.attachEvent("onload", initPng);
}

if (window.addEventListener){
	window.addEventListener("load", detectSafari, false);
}