function mainNav(context)
{
	for(var i=0; i < context.childNodes.length; i++)
	{
		var n = context.childNodes[i];
		if(n.nodeName == "DIV")
		{
			for(var x=0; x < n.childNodes.length; x++)
			{
				var n2 = n.childNodes[x];
				if(n2.nodeName == "A")
				{
					for(var j=0; j < n2.childNodes.length; j++)
					{
						var n3 = n2.childNodes[j];
						if(n3.nodeName == "IMG")
						{
							n3.onmouseover = function()
							{
								this.src = "images/nav/" + this.id + "_02.gif";
							}

							n3.onmouseout = function()
							{
								this.src = "images/nav/" + this.id + "_01.gif";
							}

						}


					}
				

				}
	
			}

		}

	}


}


if (window.addEventListener) window.addEventListener("load", init, false);
    else if (window.attachEvent) window.attachEvent("onload", init);
    
function init() 
{  
	mainNav(document.getElementById("headerBottom"));
}