function count() {
	 var selected_news = new Array();
	 var selected_events = new Array();
	 var events = document.getElementById('page_id_event[]');
	 var news = document.getElementById('page_id_news[]');
	 for (var b = 0; b < events.options.length; b++) {
		 if (events.options[b].selected) {
			 selected_events.push(events.options[b].value);
		 }
	 }
	 for (var i = 0; i < news.options.length; i++) {
		 if (news.options[i].selected) {
			 selected_news.push(news.options [i].value);
		 } 		 
	 }
	 
	 if (selected_news.length > 0) {
		 document.getElementById('page_id_news[]').disabled = false;
		 document.getElementById('page_id_event[]').disabled = true;		 
	 }
	 else if (selected_news.length == 0 && selected_events.length == 0) {
		 document.getElementById('page_id_news[]').disabled = false;
		 document.getElementById('page_id_event[]').disabled = false;
	 }
	 else if (selected_events.length > 0) {
		 document.getElementById('page_id_event[]').disabled = false;
		 document.getElementById('page_id_news[]').disabled = true;
	 }
	 
}