function validateForm() {
	var err = 0;
	
	
	if(document.getElementById("Vorname").value == '') {
		document.getElementById("label-vorname").className = 'error leer';
		err = 1;
	} else {
		document.getElementById("label-vorname").className = 'leer';
	}
	
	if(document.getElementById("Name").value == '') {
		document.getElementById("label-name").className = 'error leer';
		err = 1;
	} else {
		document.getElementById("label-name").className = 'leer';
	}
	
	if(document.getElementById("Strasse").value == '') {
		document.getElementById("label-strasse").className = 'error leer';
		err = 1;
	} else {
		document.getElementById("label-strasse").className = 'leer';
	}
	
	if(document.getElementById("PLZOrt").value == '') {
		document.getElementById("label-ort").className = 'error leer';
		err = 1;
	} else {
		document.getElementById("label-ort").className = 'leer';
	}
	
	if(document.getElementById("Email").value == '') {
		document.getElementById("label-email").className = 'error leer';
		err = 1;
	} else {
		document.getElementById("label-email").className = 'leer';
	}
	
	if(document.getElementById("Nachricht").value == '') {
		document.getElementById("label-nachricht").className = 'error leer';
		err = 1;
	} else {
		document.getElementById("label-nachricht").className = 'leer';
	}
	
	
/* Ab hier nichts mehr ändern */
	
	if(err === 0) {
		return true;
	} else {
		document.getElementById("fehler").className = 'error leer';
		return false;
	}
		
}