function externalLinks() {
	if(!document.getElementsByTagName) return;
		var anchors = document.getElementsByTagName("a");
	for(var i=0; i<anchors.length; i++)
		if(anchors[i].getAttribute("href") && anchors[i].getAttribute("rel") == "external")
			anchors[i].target = "_blank";
	}
window.onload = externalLinks;

function trigTag(id) {
	var obj =  document.getElementById(id);
	if(obj.style.display == 'block')
		obj.style.display = 'none';
	else
		obj.style.display = 'block';
	return true;
	}