var onloads = new Array();

function bodyOnLoad(opt) {
	for ( var i = 0 ; i < onloads.length ; i++ ) {
		onloads[i]();
	}
}


Event.observe(window, 'load', bodyOnLoad);

var extClick = {
				generic: function (event) {
					var e=Event.element(event).parentNode;
					e.target="_blank";
				}

			};

onloads.push ( function () {

	$$('a.l_ext').each ( function (obj)  {
		Event.observe(obj, 'click',	extClick.generic.bindAsEventListener(extClick) );
	});

});