Textfeld aus 1. Formular auslesen und Werte in Textfeld im 2.Formular eintragen

HTML-Quelltext

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<table align="center" class="table" border="0" cellspacing="1" cellpadding="3">
    <tr>
    <td class="main" width="30%">
    <div class="align">Fahrzeug</div>
    </td>
    <td class="main">
    <select class="select" size="1" name="fahrzeug">
    <option value="Bitte ausw&auml;hlen">Bitte ausw&auml;hlen</option>
    <option value="Limousine">Limousine</option><option value="Kleinwagen">Kleinwagen</option>
    <option value="Kombi">Kombi</option><option value="Gel&auml;ndewagen/Pickup">Gel&auml;ndewagen/Pickup</option>
    <option value="Cabrio/Roadster">Cabrio/Roadster</option>
    <option value="Sportwagen/Coup&eacute;">Sportwagen/Coup&eacute;</option>
    </select>
    </td>
    </tr>

    <tr>
    <td class="main" width="30%">
    <div class="align">Marke</div>
    </td>
    <td class="main">
    <input class="input" type="text" name="marke" id="marke" size="20" maxlength="100" />
    </td>
    </tr>