I have this table:
<table width="98%" cellspacing="3" cellpadding="3" border="0"
class="cnu">
<thead>
<tr>
<th><strong>Operatii</strong></th>
<th><strong>TIP </strong></th>
<th><strong>Denumire articol sau serviciu</
strong></th>
<th><strong>UM</strong></th>
</thead>
</tr>
<tr>
<td><input type="button" class="button ccc"
name="salvezidarticol" id="salvezidarticol" value="Salvez"/>
<input type="hidden" value="1" name="codintern"
id="codintern" class="codint"/></td>
<td class="class_td">
<select id="idfelp" name="idfelp">
<option value="7">Alte mat.
consumabile</option>
<option value="9">Ambalaje</option>
<option value="13">Amenajari provizorii</option>
<option value="5">Combustibili</option>
<option value="17">Discount iesiri</option>
</select></td>
<td class=""><strong>BISCUITI</strong></td>
<td class="class_td"><strong>cut</strong></td>
<td class="class_td"><strong><input type="text"
value="19.00" size="2"/></strong></td>
</tr>
<tr>
<td><input type="button" class="button ccc"
name="salvezidarticol" id="salvezidarticol" value="Salvez"/>
<input type="hidden" value="2" name="codintern"
id="codintern" class="codint"/></td>
<td class="class_td">
<select id="idfelp" name="idfelp">
<option value="7">Alte mat.
consumabile</option>
<option value="9">Ambalaje</option>
<option value="13">Amenajari provizorii</option>
<option value="5">Combustibili</option>
<option value="17">Discount iesiri</option>
</select></td>
<td class=""><strong>CAFEA</strong></td>
<td class="class_td"><strong>kg</strong></td>
<td class="class_td"><strong><input type="text"
value="19.00" size="2"/></strong></td>
</tr>
<tr>
<td><input type="button" class="button ccc"
name="salvezidarticol" id="salvezidarticol" value="Salvez"/>
<input type="hidden" value="3" name="codintern"
id="codintern" class="codint"/></td>
<td class="class_td">
<select id="idfelp" name="idfelp">
<option value="7">Alte mat.
consumabile</option>
<option value="9">Ambalaje</option>
<option value="13">Amenajari provizorii</option>
<option value="5">Combustibili</option>
<option value="17">Discount iesiri</option>
</select></td>
<td class=""><strong>TRUSA SCULE</strong></td>
<td class="class_td"><strong>buc</strong></td>
<td class="class_td"><strong><input type="text"
value="19.00" size="2"/></strong></td>
</tr>
<tr>
<td><input type="button" class="button ccc"
name="salvezidarticol" id="salvezidarticol" value="Salvez"/>
<input type="hidden" value="4" name="codintern"
id="codintern" class="codint"/></td>
<td class="class_td">
<select id="idfelp" name="idfelp">
<option value="7">Alte mat.
consumabile</option>
<option value="9">Ambalaje</option>
<option value="13">Amenajari provizorii</option>
<option value="5">Combustibili</option>
<option value="17">Discount iesiri</option>
</select></td>
<td class=""><strong>CIOCOLATA</strong></td>
<td class="class_td"><strong>buc</strong></td>
<td class="class_td"><strong><input type="text"
value="19.00" size="2"/></strong></td>
</tr>
<tr>
<td><input type="button" class="button ccc"
name="salvezidarticol" id="salvezidarticol" value="Salvez"/>
<input type="hidden" value="5" name="codintern"
id="codintern" class="codint"/></td>
<td class="class_td">
<select id="idfelp" name="idfelp">
<option value="7">Alte mat.
consumabile</option>
<option value="9">Ambalaje</option>
<option value="13">Amenajari provizorii</option>
<option value="5">Combustibili</option>
<option value="17">Discount iesiri</option>
</select></td>
<td class=""><strong>DISCOUNT IESIRI</strong></
td>
<td class="class_td"><strong>buc</strong></td>
<td class="class_td"><strong><input type="text"
value="19.00" size="2"/></strong></td>
</tr>
</thead>
</table>
How find value of <input type="hidden"> on click on button name
"Salvez",but value of select with id ="idfelp"
Thank you.