function showElementById(id, btn)
{
	var element = document.getElementById(id);
	if (element)
	{
		if (element.className == 'hid')
		{
			element.className = '';
			document.getElementById(btn).className = 'on';
		} else {
			element.className = 'hid';
			document.getElementById(btn).className = '';
		}
			
	}
	
	return false;
}