menuButtonHover = new Image(16,30); 
menuButtonHover.src= "images/menuButtonHL.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";
	}
}

function showHide(id) {
	block = self.document.getElementById(id);
	if (block.className == "show")
		block.className = "hide";
	else
		block.className = "show";
}