// JavaScript Document

//gestione del menu
function rollfunc (id, action) {
		buttons = new Array("mission","collezioni","guestbook","gallery","concorso","multimedia","dovecomprare","contattaci","adv");
		for ( singleDivIndex in buttons ) {
				//alert(buttons[singleDivIndex])
			document.getElementById(buttons[singleDivIndex]).src = "img/menu-"+buttons[singleDivIndex]+"-down.gif";
		}
			if (action == 'over') {
				//su rollOver
					document.getElementById(id).src = "img/menu-"+id+"-up.gif";
			}
}
function sub_menu() {
	if (document.getElementById("sub_menu").style.display == "none") {
		//simple_form_init();
		document.getElementById("sub_menu").style.display = "block";
	} else {
		document.getElementById("sub_menu").style.display = "none";
	}
}

function show_form() {
	if (document.getElementById("guestbook_form").style.display == "none") {
		//simple_form_init();
		document.getElementById("guestbook_form").style.display = "block";
		document.getElementById("message").style.display = "none";
	} else {
		document.getElementById("guestbook_form").style.display = "none";
		document.getElementById("message").style.display = "block";
	}
}
function getImageWidth(myImage) {
	var x, obj;
	if (document.layers) {
		var img = getImage(myImage);
		return img.width;
	} else {
		return getElementWidth(myImage);
	}
	return -1;
}

function getImageHeight(myImage) {
	var y, obj;
	if (document.layers) {
		var img = getImage(myImage);
		return img.height;
	} else {
		return getElementHeight(myImage);
	}
	return -1;
}