//open in new window

Event.observe(window, 'load',
	function() {
		//open links with class="ext" in a new window
		var ext = $$('a.ext');
		ext.each(
			function(a) {
				a.onclick = function() { 
					var newWindow = window.open( a, '_blank');
					return false;
				};
			} //end fn
		); //end each
	} //end fn
); //end observe