Agregar o quitar valores usando checkbox y select

[tunait]

oño que no me cabe.... sigue...

<td width="214" colspan="3" valign="top" class="txt2"><input name="CModJ" type="checkbox" id="CModJ" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModJ,t' )">
<select name="fieldsetModJ" id="fieldsetModJ" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod9" value="0"></td>
</tr>
<tr>
<td height="21" colspan="3" valign="top" class="txt2"><input name="CModC" type="checkbox" id="CModC" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModC,t' )">
<select name="fieldsetModC" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
&Iacute;tem
<input type="hidden" name="valueMod2" value="0"></td>
<td colspan="3" valign="top" class="txt2"><input name="CModK" type="checkbox" id="CModK" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModK,t' )">
<select name="fieldsetModK" id="fieldsetModK" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod10" value="0"></td>
</tr>
<tr>
<td height="21" colspan="3" valign="top" class="txt2"><input name="CModD" type="checkbox" id="CModD" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModD,t' )">
<select name="fieldsetModD" id="fieldsetModD" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select> <span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod3" value="0"></td>
<td colspan="3" class="txt2"><input name="CModL" type="checkbox" id="CModL" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModL,t' )">
<select name="fieldsetModL" id="fieldsetModL" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod11" value="0">
</td>
</tr>
<tr>
<td height="21" colspan="3" valign="top" class="txt2"><input name="CModE" type="checkbox" id="CModE" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModE,t' )">
<select name="fieldsetModE" id="fieldsetModE" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod4" value="0"></td>
<td colspan="3" class="txt2"><input name="CModM" type="checkbox" id="CModM" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModM,t' )">
<select name="fieldsetModM" id="fieldsetModM" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod12" value="0"></td>
</tr>
<tr>
<td height="21" colspan="3" valign="top" class="txt2"><input name="CModF" type="checkbox" id="CModF" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModF,t' )">

<select name="fieldsetModF" id="fieldsetModF" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod5" value="0"></td>
<td colspan="3" class="txt2"><input name="CModN" type="checkbox" id="CModN" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModN,t' )">
<select name="fieldsetModN" id="fieldsetModN" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod13" value="5"></td>
</tr>
<tr>
<td height="21" colspan="3" valign="top" class="txt2"><input name="CModG" type="checkbox" id="CModG" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModG,t' )">
<select name="fieldsetModG" id="fieldsetModG" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod6" value="0"></td>
<td colspan="3" class="txt2"><input name="CModO" type="checkbox" id="CModO" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModO,t' )">
<select name="fieldsetModO" id="fieldsetModO" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod14" value="0"></td>
</tr>
<tr>
<td height="21" colspan="3" valign="top" class="txt2"><input name="CModH" type="checkbox" id="CModH" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModH,t' )">
<select name="fieldsetModH" id="fieldsetModH" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod7" value="0"></td>
<td colspan="3" class="txt2"><input name="CModR" type="checkbox" id="CModR" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModR,t' )">
<select name="fieldsetModR" id="fieldsetModR" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod15" value="0"></td>
</tr>
<tr>
<td height="21" colspan="3" valign="top" class="txt2"><input name="CModI" type="checkbox" id="CModI" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModI,t' )">
<select name="fieldsetModI" id="fieldsetModI" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<span class="txt2">&Iacute;tem</span><input type="hidden" name="valueMod8" value="0"></td>
<td colspan="3" class="txt2"><input name="COtherMod" type="checkbox" id="COtherMod" value="1" onClick="flvFTFO1('frmWebModular','fieldsetModOthe r,t','fieldsetOtherTXT,t');sumaItems4(this,this.fo rm)">
<select name="fieldsetModOther" id="fieldsetModOther" disabled>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option> </select>
<input name="fieldsetOtherTXT" type="text" class="form_whois" id="fieldsetOtherTXT" value="Otro, cual?" size="10" onFocus="if(this.value=='Otro, cual?')this.value='';" disabled>
<input type="hidden" name="valueMod16" value="0"></td>
</tr>
</table></td>
</tr>
<tr>
<td height="19" align="center" class="txt2">Total &Iacute;tems Elegidos: &nbsp;