function externalLinks() {
	// Opens external links in a new browser window
	
	if (document.getElementsByTagName) {

		var titleText = '[nieuw venster]';
		var allLinks = document.getElementsByTagName('a');
		
		for (var i=0; i < allLinks.length; i++) {
			var theLink = allLinks[i];
			if (theLink.getAttribute("href") && theLink.getAttribute("rel")=='external') {
				theLink.target = '_blank';
				
				// Set 
				if (theLink.title) {
					theLink.title += ' ' + titleText;
				} 
				else {
					theLink.title = titleText;
				}
				
			}
		}		
	}
}
function addEvent(objObject, strEventName, fnHandler) { 
	// DOM-compliant way to add an event listener 
	if (objObject.addEventListener) 
		objObject.addEventListener(strEventName, fnHandler, false); 
	// IE/windows way to add an event listener 
	else if (objObject.attachEvent) 
		objObject.attachEvent("on" + strEventName, fnHandler); 
}
addEvent(window, "load", externalLinks);