function he(obj)
{
	var c = (document.getElementById('center').offsetHeight);
	document.getElementById('left').style.height=c-68+'px';
	var h = (document.getElementById('default-back').offsetHeight);
	obj.height=h;
}

function hideContact(id)
{
	var elem = document.getElementById('leftcol-contact-' + id);
	elem.style.display = 'none';
}

function toggleContact(id)
{
	var elem = document.getElementById('leftcol-contact-' + id);
	var oldDisplay = elem.style.display;
	hideContact('sales');
	hideContact('parts');
	hideContact('tech');
	hideContact('admin');
	if (oldDisplay == 'block')
	{
		elem.style.display = 'none';
	}
	else
	{
		elem.style.display = 'block';
	}
}

function showLanguageNotAvail(lang)
{
	if (lang == "de")
	{
		alert('Lieber Besucher,\ndie Seite ist momentan noch nicht in Deutsch verfügbar.');
	}
	else
	{
		alert('Dear Visitor,\nsorry, this site is not yet available in the selected language.');
	}
}