function loadStyle(file) {
  var linkStyle = document.createElement("link");
  linkStyle.setAttribute("rel", "stylesheet");
  linkStyle.setAttribute("type", "text/css");
  linkStyle.setAttribute("media", "screen");
  linkStyle.setAttribute("href", file);
  document.getElementsByTagName("head")[0].appendChild(linkStyle);
}

function links() {
	var anchors = document.getElementsByTagName('a');	
	for (var i = 0; i < anchors.length; i++) {
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		var rel = anchor.getAttribute('rel');
		if (rel == 'external') {
			anchor.target = '_blank';
		}
	}
}

window.onload = function(){
	links();
};