s.contacts = function(selector){
	elements = $$(selector);
	if (elements.length > 0){
		elements.forEach(function(el){
			target 	= $$('div.target', el);
			overlay = new y.widget.Overlay(target[0], { visible:false} );
			overlay.render();
			y.util.Event.addListener(el, "mouseover",  overlay.show, overlay, true);
			y.util.Event.addListener(el, "mouseout",  overlay.hide, overlay, true);
		});
	}
};