title: HTML & Javascript - Show / Hide Form with Dropdown List or Radio
body: <p>Good morning all,
  I've the following HTML form: </p>
  
  <pre><code>&lt;table border="0"&gt;
  &lt;tr align="center"&gt;
  &lt;td colspan="2"&gt;&lt;b&gt;title&lt;/b&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;&lt;td&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr&gt;
  &lt;td&gt;Test:&lt;/td&gt;&lt;td&gt;&lt;input type="text" name="test" size="25"&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td&gt;Name :&lt;/td&gt;&lt;td&gt;&lt;input type="text" name="name" size="25"&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td align="left"&gt;Tipo de Linha :&lt;/td&gt;
  &lt;td&gt; &lt;select name="linha" size="1"&gt;
  &lt;option value="0" selected="selected"&gt;Escolhe uma das opções...&lt;/option&gt;
  &lt;option class="1" value="1"&gt;1&lt;/option&gt;
  &lt;option class="2" value="2"&gt;2&lt;/option&gt;
  &lt;option class="3" value="3"&gt;3&lt;/option&gt;
  &lt;option class="4" value="4"&gt;4&lt;/option&gt; &lt;/select&gt; &lt;/td&gt;
  &lt;/tr&gt;
  &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>And what i really need is:</p>
  
  <p>In the top of page, i need to choose one of that options (1, 2, 3 or 4) and if i choose the number 1 it will show me some form question if i choose number 2, others form questions and so on..</p>
  
  <p>The options list / menu can be radio or dropdown or whatever.</p>
  
  <p>Sorry my english. =\</p>
  
  <p>Thnx in advance!</p>