function switchOver(num) {
	picOver = "images/nav/" + num + "over.jpg";
	document[num].src = picOver;
}
	
	function switchOut(num){
	picOut = "images/nav/" + num + ".jpg";
	document[num].src = picOut;
}
	

image1=new Image();
image1.src="images/nav/lauraover.jpg";
image2=new Image();
image2.src="images/nav/conventionover.jpg";
image3=new Image();
image3.src="images/nav/aboutover.jpg";
image4=new Image();
image4.src="images/nav/relatedover.jpg";
image5=new Image();
image5.src="images/nav/newsletterover.jpg";
image6=new Image();
image6.src="images/nav/homeover.jpg";