function fCheckContactForm() {
    /* 
    *  Minimum Felder sind:
    *  - Vorname
    *  - Name
    *  - Email
    *  - Nachricht
    **/
    vFormOkay    = true;
    vCheckArray  = new Array;
    vCheckArray[0] = 'Feld_Email';
    vCheckArray[1] = 'Feld_Vorname';
    vCheckArray[2] = 'Feld_Nachname';
    vCheckArray[3] = 'Feld_Nachricht';

    for (var i = 0; i < vCheckArray.length; i++) {
      if (document.getElementById(vCheckArray[i]).value == '') { document.getElementById(vCheckArray[i]).style.backgroundColor  = '#FF0000'; vFormOkay = false; }
      else                                                       document.getElementById(vCheckArray[i]).style.backgroundColor  = '#00FF00';
    }
    
    
    return vFormOkay;
}