function ChangeForm(whichID)
{
	for(var i = 1; i < 4; i++)
	{
		if(i == whichID)
		{
			document.getElementById('l' + whichID).className = 'link' + whichID + ' on' + whichID;
			document.getElementById('valaszt' + whichID).style.display = 'block';
		}
		else
		{
			document.getElementById('l' + i).className = 'link' + i + ' off' + i;
			document.getElementById('valaszt' + i).style.display = 'none';
		}
	}
}