butHomeHover = new Image(224,37); 
butHomeHover.src="images/butHomeHover.gif";
butKittensHover = new Image(224,37); 
butKittensHover.src="images/butKittensHover.gif";
butGirlsHover = new Image(224,37); 
butGirlsHover.src="images/butGirlsHover.gif";
butStudHover = new Image(224,37); 
butStudHover.src="images/butStudHover.gif";
butHonoursHover = new Image(224,37); 
butHonoursHover.src="images/butHonoursHover.gif";
butGalleryHover = new Image(224,37); 
butGalleryHover.src="images/butGalleryHover.gif";
butLinksHover = new Image(224,37); 
butLinksHover.src="images/butLinksHover.gif";

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("href") && anchor.getAttribute("rel") == "external")
		anchor.target = "_blank";
	}
}