// JavaScript functions

// Changes class of element
function change(id, newClass) {
	identity=document.getElementById(id);
	identity.className=newClass;
}

function popup(mypage, myname, w, h, scroll) {
  var winl = (screen.width - w) / 2;
  var wint = (screen.height - h) / 2;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+''
	win = window.open(mypage, myname, winprops)
  if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

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;