function trim (_string) {
	  return _string.replace (/^\s+/, '').replace (/\s+$/, '');
}

function requestNetzengel()
{
	$('fehlerNummer').style['display'] = 'none';
	$('fehlerVorname').style['display'] = 'none';
	$('fehlerNachname').style['display'] = 'none';
	var nummer = $('nummer').value;
	var vorname = $('vorname').value;
	var nachname = $('nachname').value;
	
	if(trim(vorname) == "" || vorname == 'Vorname')
	{
		Effect.Shake('vorname');
		$('fehlerVorname').style['display'] = 'block';
		return false;
	}
	
	if(trim(nachname) == "" || nachname == 'Nachname')
	{
		Effect.Shake('nachname');
		$('fehlerNachname').style['display'] = 'block';
		return false;
	}
	
	if(trim(nummer) == "" || isPhone(nummer) == false)
	{
		Effect.Shake('nummer');
		$('fehlerNummer').style['display'] = 'block';
		return false;
	}
	
	$('formNetzengel').innerHTML = '<p>Sendet Daten...</p>';
	new Ajax.Request('/scripts/applications/serviceNetzengel.asp?nummer=' + nummer + '&vorname=' + vorname + '&nachname=' + nachname,
	{   
		onSuccess: function(transport){
			$('formNetzengel').innerHTML = '<p>Ihre Daten wurden empfangen.</p><img height="1" width="1" style="border-style:none;" alt="" src="http://www.googleadservices.com/pagead/conversion/1071877018/?label=w9-WCLi0kQEQmpeO_wM&amp;guid=ON&amp;script=0"/>';
		}
	});
}