$(document).ready(function() {

	

	var thumbs=$("#topnews li");
	
	
	 last_id="head_0";

	thumbs.each(function(){

		

		$(this).mouseover(function(){
			var pomi = $(this);
			
			thumbs.removeClass('selected');
			pomi.addClass('selected');
			
			$("#div_"+last_id).css('display', 'none');
			$("#div_"+pomi.attr("id")).css('display', 'block');
			last_id=pomi.attr("id");
							
			
			
		});	
	});	
	





});