function hide(obj) {
	document.getElementById(obj).style.display = 'none';
}


function show(obj) {
	bubblesdiv = document.getElementById("bubbles").getElementsByTagName("div")
	for (var i = 0; (node = bubblesdiv.item(i)); i++)
	{ node.style.display = 'none'; }
	document.getElementById(obj).style.display = 'block';
}

function borderme(obj) {
	if (document.getElementById(obj).style.display == 'block') document.getElementById(obj).style.display = 'none';
	else document.getElementById(obj).style.display = 'block';
}

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";
	} 
} 
window.onload = externalLinks;