function showProductArea(val)
{
	if(val == 1)
	{
		document.getElementById("ProductPanel").style.visibility = "visible";
	}
	else
	{
		document.getElementById("ProductPanel").style.visibility = "hidden";
	}
}

function changeTumOtobusler(picture)
{
	document.tumOtobusler.src = picture;
}

function changeAnaSayfa(picture)
{
	document.anaSayfa.src = picture;
}

function changeFirmaHakkinda(picture)
{
	document.firmaHakkinda.src = picture;
}

function changeIletisim(picture)
{
	document.iletisim.src = picture;
}