// JavaScript 
$(function(){
	




	$(".open").hide();
	$(".openDiv").click(
		function(){

			if( $(this).next().is(":visible")) {
				$(this).css({ backgroundImage:"url(immagini/plus.gif)", backgroundRepeat:"no-repeat"});
			}		

			if( !$(this).next().is(":visible")) {
				$(this).css({ backgroundImage:"url(immagini/minus.gif)", backgroundRepeat:"no-repeat"});	
			}
			$(this).next().toggle("fast");
	});

})