it_flag_color = new Image();
it_flag_color.src = "img/it_flag_color.gif";
it_flag_bw = new Image();
it_flag_bw.src = "img/it_flag_bw.gif";

uk_flag_color = new Image();
uk_flag_color.src = "img/uk_flag_color.gif";
uk_flag_bw = new Image();
uk_flag_bw.src = "img/uk_flag_bw.gif";

function set_flag(index)
{
	if (index==1)
		it_flag.src = it_flag_color.src;
	else if (index==2)
		uk_flag.src = uk_flag_color.src;
}
function reset_flag(index)
{
	if (index==1)
		it_flag.src = it_flag_bw.src;
	else if (index==2)
		uk_flag.src = uk_flag_bw.src;
}
function menu_up(index)
{
	tbl = document.getElementById('table_front');
	if (index==1)
	{
		elem = document.getElementById('map');
		other_1 = document.getElementById('dettagli');
		other_2 = document.getElementById('imago');
		other_3 = document.getElementById('contact');
	}
	else if (index==2)
	{
		elem = document.getElementById('dettagli');
		other_1 = document.getElementById('map');
		other_2 = document.getElementById('imago');
		other_3 = document.getElementById('contact');
	}
	else if (index==3)
	{
		elem = document.getElementById('imago');
		other_1 = document.getElementById('map');
		other_2 = document.getElementById('dettagli');
		other_3 = document.getElementById('contact');
	}
	else if (index==4)
	{
		elem = document.getElementById('contact');
		other_1 = document.getElementById('map');
		other_2 = document.getElementById('dettagli');
		other_3 = document.getElementById('imago');
	}
		
	if (elem.style.display=='block')
		hide(elem,tbl.offsetTop,tbl.offsetLeft);
	else
	{
		if (other_1.style.display!='none')
			hide(other_1,tbl.offsetTop,tbl.offsetLeft);
		if (other_2.style.display!='none')
			hide(other_2,tbl.offsetTop,tbl.offsetLeft);
		if (other_3.style.display!='none')
			hide(other_3,tbl.offsetTop,tbl.offsetLeft);
		show(elem,tbl.offsetTop,tbl.offsetLeft);
	}
}
function show(obj,top,left)
{
	obj.style.top=top+"px";
	obj.style.left=(left-240)+"px";
	obj.style.display='block';
	for (;parseInt(obj.style.left)<left;obj.style.left=(parseInt(obj.style.left)+1)+"px");
}
function hide(obj,top,left)
{
	obj.style.top=top+"px";
	obj.style.left=left+"px";
	for (;parseInt(obj.style.left)>left-240;obj.style.left=(parseInt(obj.style.left)-1)+"px");
	obj.style.display='none';
}
function menu_down(index)
{
	if (index==1)
		elem = document.getElementById('map');
	else if (index==2)
		elem = document.getElementById('dettagli');
	else if (index==3)
		elem = document.getElementById('imago');
	else if (index==4)
		elem = document.getElementById('contact');
	
	tbl = document.getElementById('table_front');
	hide(elem,tbl.offsetTop,tbl.offsetLeft);
}