function setup(){
	//navi();
}

function setupLoad(){
	externalLinks();
}

function navi(){
	$$('#navi a').each(
		function(a){										
			a.addEvent('mouseenter', function(e){
				var img = a.getFirst();
				if(! new String(img.src).contains("_hover.png")){
					var newSrc = new String(img.src).slice(0,-4) + "_hover.png";
					new Asset.image(newSrc, {id: a.id+"_img_hover", title: 'Navigation', onload: switchImage(img, $(a.id+"_img_hover"))});
				}
			});
			a.addEvent('mouseleave', function(e){

			});
		}
	);
}

function switchImage(oldImage, newImage){
	var parent = oldImage.getParent();
	oldImage.remove();
	newImage.injectInside(parent);
}

function externalLinks(){
	$$('a.extern').each(function(a){
		a.addEvent('click', function(e){
			new Event(e).stop();
			window.open(a.getProperty("href"));
		});
	});
}

window.addEvent('domready', setup);
window.addEvent('load', setupLoad);