function extLinks() {
		if (!document.getElementsByTagName) {
			return;
		}
		
		var arrAnchors = document.getElementsByTagName('a');
		
		for (var intCount = 0; intCount < arrAnchors.length; intCount++) {
			var elmAnchor = arrAnchors[intCount];
			
			if (elmAnchor.getAttribute('href') && elmAnchor.getAttribute('rel') == 'external') {
				elmAnchor.target = '_blank';
			}
		}		
	}
	
	window.onload = extLinks;