function ShowAboutUs()
{
	document.getElementById('AboutUs').style.display = '';
}
function HideAboutUs()
{
	document.getElementById('AboutUs').style.display = 'none';
}

function ShowServices()
{
	document.getElementById('OnlServ').style.display = '';
}
function HideServices()
{
	document.getElementById('OnlServ').style.display = 'none';
}


function CheckInputContact()
{
	var Result = false;
	
	if(document.getElementById('txtName').value != '')	
		Result = true;
	else
		alert('U bent vergeten uw naam in te vullen.');
	
	if(Result)
	{
		if( (document.getElementById('txtPhone').value != '') || (document.getElementById('txtEmail').value != '') )
			Result = true;
		else
		{
			Result = false;
			alert('U bent vergeten uw telefoonnummer of emailadres in te vullen.');
		}
	}
	
	return Result;
}