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controlling options in a drop down box

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Hi all,

I'm a newbie to the forum and a Javascript beginner, I'd appreciate some help with a drop down box issue. Is it possble to limit the options/attributes in a drop down box based on how the attribute was rated in a previous question.

Basically, if a customer gives a rating of 'Very Satisfied' or 'Somewhat Satisfied' (values 1 and 2, respectively) to an attribute, that attribute is removed from the list of options in a dropdown box that asks for the 'Area of greatest dissatisfaction'.

My example only gives three attiributes (variables) but the actual case will have 28 attributes. I apologize if the formatting looks messy, my current level of javascript programming is pretty low.

Thanks in advance for any help.

BB


I hope I post this correctly, here is what I currently have:


Expand|Select|Wrap|Line Numbers
  1.  
  2. <HTML><HEAD>
  3.  
  4. </HEAD>
  5. <font face="Verdana" size="1">
  6.  
  7. </font>
  8. <font face="Verdana"><font size="1">
  9.  
  10.  
  11. </font>
  12. <div align="center">
  13.  
  14. <table border="0" width="92%" cellspacing="1" cellpadding="0" height="20">
  15.  
  16. <TR ALIGN=CENTER><TH width="859" height="50" valign="center" colspan="6">
  17.     <p align="left" style="margin-top: 0; margin-bottom: 4px">
  18. Overall, <span style="font-weight: 400">
  19. <font face="Verdana">how satisfied are you with EACH of the following areas?</font><font size="2" face="Verdana"><i>)</i></font></span></TH>
  20. </TR>
  21.  
  22. <TR ALIGN=CENTER><TH width="450" height="45" valign="bottom">
  23.     <p align="left" style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  24.     &nbsp;</TH>
  25.     <TH bgcolor="#008000" height="45" width="104">
  26.       <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  27.         <font face="Verdana" size="1" color="#F2F2F2">Very</font></p>
  28.       <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  29.         <font face="Verdana" size="1" color="#F2F2F2">Satisfied</font></p>
  30.   </TH>
  31. <TH bgcolor="#008000" height="45" width="76">
  32.   <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  33. <font face="Verdana" size="1" color="#F2F2F2">Somewhat</font></p>
  34.   <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  35. <font face="Verdana" size="1" color="#F2F2F2">Satisfied</font></p>
  36.   </TH>
  37. <TH bgcolor="#008000" height="45" width="76">
  38.   <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  39. <font face="Verdana" size="1" color="#F2F2F2">Neither Satisfied Nor Dissatisfied</font></p>
  40.   </TH>
  41. <TH bgcolor="#008000" height="45" width="76">
  42.   <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  43. <font face="Verdana" size="1" color="#F2F2F2">Somewhat Dissatisfied</font></p>
  44.   </TH>
  45. <TH bgcolor="#008000" height="45" width="77">
  46.   <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  47. <font face="Verdana" size="1" color="#F2F2F2">Very Dissatisfied</FONT></font></p>
  48. </TH>
  49. </TR>
  50. <TR ALIGN=CENTER><TD ALIGN=LEFT width="450" bgcolor="#F2F2F2" height="39">
  51.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  52.     <font face="Verdana" size="2" color="#000000">1. Car performance</font></p>
  53.   </TD><td width="104" bgcolor="#F2F2F2" height="39">
  54.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  55.     <font face="Verdana" size="1"><input type="radio" name="Q1_1" value="1"></font></p>
  56.   </td>
  57.     <td width="76" bgcolor="#F2F2F2" height="39">
  58.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  59.     <font face="Verdana" size="1"><input type="radio" name="Q1_1" value="2"></font></p>
  60.   </td>
  61.     <td width="76" bgcolor="#F2F2F2" height="39">
  62.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  63.     <font face="Verdana" size="1"><input type="radio" name="Q1_1" value="3"></font></p>
  64.   </td>
  65.     <td width="76" bgcolor="#F2F2F2" height="39">
  66.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  67.     <font face="Verdana" size="1"><input type="radio" name="Q1_1" value="4"></font></p>
  68.   </td><td width="77" bgcolor="#F2F2F2" height="39">
  69.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  70.     <font face="Verdana" size="1"><input type="radio" name="Q1_1" value="5"></font></p>
  71.   </td></TR>
  72. <TR ALIGN=CENTER><TD ALIGN=LEFT width="450" height="34">
  73.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  74.     <font face="Verdana" size="2" color="#000000">2. Car reliability</font></p>
  75.   </TD>
  76.     <td width="104" height="34">
  77.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  78.     <font face="Verdana" size="1"><input type="radio" name="Q1_2" value="1"></font></p>
  79.   </td>
  80.     <td width="76" height="34">
  81.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  82.     <font face="Verdana" size="1"><input type="radio" name="Q1_2" value="2"></font></p>
  83.   </td>
  84.     <td width="76" height="34">
  85.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  86.     <font face="Verdana" size="1"><input type="radio" name="Q1_2" value="3"></font></p>
  87.   </td>
  88.     <td width="76" height="34">
  89.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  90.     <font face="Verdana" size="1"><input type="radio" name="Q1_2" value="4"></font></p>
  91.   </td><td width="77" height="34">
  92.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  93.     <font face="Verdana" size="1"><input type="radio" name="Q1_2" value="5"></font></p>
  94.   </td></TR>
  95. <TR ALIGN=CENTER><TD ALIGN=LEFT width="450" bgcolor="#F2F2F2" height="34">
  96.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  97.     <font face="Verdana" size="2" color="#000000">3. Gas mileage</font></p>
  98.   </TD>
  99.     <td width="104" bgcolor="#F2F2F2" height="34">
  100.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  101.     <font face="Verdana" size="1"><input type="radio" name="Q1_3" value="1"></font></p>
  102.   </td>
  103.     <td width="76" bgcolor="#F2F2F2" height="34">
  104.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  105.     <font face="Verdana" size="1"><input type="radio" name="Q1_3" value="2"></font></p>
  106.   </td>
  107.     <td width="76" bgcolor="#F2F2F2" height="34">
  108.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  109.     <font face="Verdana" size="1"><input type="radio" name="Q1_3" value="3"></font></p>
  110.   </td>
  111.     <td width="76" bgcolor="#F2F2F2" height="34">
  112.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  113.     <font face="Verdana" size="1"><input type="radio" name="Q1_3" value="4"></font></p>
  114.   </td><td width="77" bgcolor="#F2F2F2" height="34">
  115.     <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  116.     <font face="Verdana" size="1"><input type="radio" name="Q1_3" value="5"></font></p>
  117.   </td></TR>
  118. <TR ALIGN=CENTER><TD ALIGN=LEFT width="859" height="50" colspan="6">
  119. <font face="Verdana">
  120.   </TD>
  121.     </TR>
  122. </TABLE>
  123.     <font face="Verdana">
  124. </font>
  125. <table border="0" cellspacing="1" width="92%" cellpadding="0">
  126.   <tr>
  127.       <td width="726" height="26">
  128. <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  129. <font face="Verdana" color="#008000" size="2">With which <b>ONE</b>, if any, of these areas are you 
  130. <b>THE MOST dissatisfied</b>?</font></td>
  131.     </tr>
  132.   <tr>
  133.     <td width="99%" bgcolor="#F2F2F2">
  134.       <font face="Verdana">
  135.       <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0"><font size="1" face="Verdana">
  136. <SELECT NAME="Q2"; size="1">
  137. <OPTION selected value="">(Click here to choose)
  138. <OPTION value="1"> 1  Car performance
  139. <OPTION value="2"> 2  Car reliability
  140. <OPTION value="3"> 3  Gas mileage
  141. </SELECT>
  142. </font>
  143.       </p>
  144.     </td>
  145.   </tr>
  146.   <tr>
  147.     <td width="99%" height="20">
  148.       <p style="word-spacing: 0; line-height: 100%; text-indent: 0; margin: 0">
  149. <font face="Verdana">
  150.       </td>
  151.     <td>
  152.     </td>
  153.   </tr>
  154. </table>
  155. </BLOCKQUOTE>
  156.  
  157. </FORM>
  158.  
  159. </font>
  160. </BODY>
  161. </HTML>
  162.  
  163.  
Oct 10 '07 #1
1 1876
acoder
16,027 Recognized Expert Moderator MVP
You could loop through all the questions from 1 to 28. Use document.getElementsByName("Q1_"+num) to get the radio buttons for each question where num is the current question.

Then check the checked property of each radio button to find out which option has been checked. If it's 1 or 2, we can mark it for deletion from the dropdown list.

To see how to remove options from a dropdown list, see this link.
Nov 3 '07 #2

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