var id_show = '';
var id_show1 = '';
var main_show = 'photogallery';
function hide(object) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(object).style.visibility = 'hidden';
		document.getElementById(object).style.display = 'none';
		}
	else {
		if (document.layers) { // Netscape 4
			document.hideshow.visibility = 'hidden';
		}
		else { // IE 4
			document.all.hideshow.style.visibility = 'hidden';
		}
	}
}

function show_main(object) {
	if (main_show != '')
	  {
		hide(main_show);
	  }
	main_show = object;
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(object).style.visibility = 'visible';
		document.getElementById(object).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.hideshow.visibility = 'visible';
		}
		else { // IE 4
			document.all.hideshow.style.visibility = 'visible';
		}
	}
}


function attiva(object) {
	document.getElementById('photo-tab').style.backgroundImage = "url(/imgmenu/media_1.png)";
	document.getElementById('video-tab').style.backgroundImage = "url(/imgmenu/media_2.png)";
	document.getElementById('webcam-tab').style.backgroundImage = "url(/imgmenu/media_3.png)";
	if (object == 'photo-tab') {document.getElementById('photo-tab').style.backgroundImage = "url(/imgmenu/media_1_on.png)";}
	if (object == 'video-tab') {document.getElementById('video-tab').style.backgroundImage = "url(/imgmenu/media_2_on.png)";}
	if (object == 'webcam-tab') {document.getElementById('webcam-tab').style.backgroundImage = "url(/imgmenu/media_3_on.png)";}
}


function show(object) {
	if (id_show != '')
	  {
		hide(id_show);
	  }
	id_show = object;
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(object).style.visibility = 'visible';
		document.getElementById(object).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.hideshow.visibility = 'visible';
		}
		else { // IE 4
			document.all.hideshow.style.visibility = 'visible';
		}
	}
}




function attiva_news(object) {
	newImage = "url(/imgbody/news_bott1.png)";
	document.getElementById('news-tab').style.backgroundImage = newImage;
	newImage = "url(/imgbody/news_bott2.png)";
	document.getElementById('canale-tab').style.backgroundImage = newImage;
}

function attiva_events(object) {
	newImage = "url(/imgbody/news_bott1a.png)";
	document.getElementById('news-tab').style.backgroundImage = newImage;
	newImage = "url(/imgbody/news_bott2a.png)";
	document.getElementById('canale-tab').style.backgroundImage = newImage;
}

function attiva_news_en(object) {
	newImage = "url(/imgbody/news_bott1.png)";
	document.getElementById('news-tab').style.backgroundImage = newImage;
	newImage = "url(/imgbody/news_bott-en2.png)";
	document.getElementById('canale-tab').style.backgroundImage = newImage;
}

function attiva_events_en(object) {
	newImage = "url(/imgbody/news_bott1a.png)";
	document.getElementById('news-tab').style.backgroundImage = newImage;
	newImage = "url(/imgbody/news_bott-en2a.png)";
	document.getElementById('canale-tab').style.backgroundImage = newImage;
}



function sleep(milliseconds) {
  var start = new Date().getTime();
  for (var i = 0; i < 1e7; i++) {
    if ((new Date().getTime() - start) > milliseconds){
      break;
    }
  }
}