function showCategory(id)
{
	if($(id).style.display == 'none')
	{
		Effect.BlindDown(id, { duration: 0.5 });
		$('Arrow' + id).src = "/images/whiteArrowBottom.png";
	}
	else
	{
		Effect.BlindUp(id, { duration: 0.5 });
		$('Arrow' + id).src = "/images/whiteArrowRight.png";
	}
}

function showItem(id)
{
	if($(id).style.display == 'none')
	{
		Effect.BlindDown(id, { duration: 0.5 });
		$('Arrow' + id).src = "/images/brownArrowBottom.png";
	}
	else
	{
		Effect.BlindUp(id, { duration: 0.5 });
		$('Arrow' + id).src = "/images/brownArrowRight.png";
	}
}

function externalLinks() 
{
	 if (!document.getElementsByTagName) 
		 return;
	 var anchors = document.getElementsByTagName("a");
	 for (var i=0; i<anchors.length; i++) 
	 {
		 var anchor = anchors[i];
		 if (anchor.getAttribute("rel") == "external")
		 {
			 anchor.target = "_blank";
		 }
	 }
}