YAHOO.util.Event.onDOMReady(function() {

	YAHOO.util.Event.addListener("selected_images", "click", function() {
		YAHOO.util.Dom.setStyle("display_image","display","block");
		YAHOO.util.Dom.setStyle("display_video","display","none");
		YAHOO.util.Dom.setStyle("selected_videos","color","#999");	
		YAHOO.util.Dom.setStyle("selected_images","color","#000");	
		
	});
	
	YAHOO.util.Event.addListener("selected_videos", "click", function() {
		YAHOO.util.Dom.setStyle("display_image","display","none");		
		YAHOO.util.Dom.setStyle("display_video","display","block");	
		YAHOO.util.Dom.setStyle("selected_images","color","#999");
		YAHOO.util.Dom.setStyle("selected_videos","color","#000");		
		
	});
	
	});