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; } } /*-------- Open Picture Window -------------*/