// onload find all anchors with pdf as classname and attach observers to them to open them in a new window
pdfWindow = {
	Init:function() {
		var anchors = $class("pdf",undefined,"a");
		for (var i=0;i<anchors.length;i++) {
			Event.Observe(anchors[i],"click",pdfWindow.Open);
		}
	},
	Open:function(e) {
		var a = Event.GetElement(e);
		window.open(a.getAttribute("href"));
		// stop event
		Event.Stop(e);
		return false;
	}
}
Event.Observe(window,"load",pdfWindow.Init);