/****************************************
*   function ShowAndHide(elementId)     *
*****************************************
* 1 - Nasconde/visualizza l'elemento    *
* "element" a seconda del suo stato     *
* 2 - Cambia l'immagine vis/nasc banner *
*****************************************/

function ShowAndHide(elementId, imgId){
	element = document.getElementById(elementId);
	if(element.style.display=="none"){
		element.style.display="block";
		document.images[imgId].src = 'img/banner_nascondi.jpg';
	} else {
			element.style.display="none";
			document.images[imgId].src = 'img/banner_visualizza.jpg';				
	  }
}

function ShowandHide2(elementId){
	element = document.getElementById(elementId);
	if(element.style.display=="none"){
		element.style.display="block";
	} else {
			element.style.display="none";
	  }
}

function Show(elementId){
	element = document.getElementById(elementId);
	element.style.display="block";
}

function Hide(elementId){
	element = document.getElementById(elementId);
	element.style.display="none";
}