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Question

observing multiple select menus with prototype

Answer 1

+2 A:

Have you checked your JS error console? The below works just fine:

<html>
  <head>
    <title>optchange</title>
    <script type="text/javascript" src="prototype.js"></script>
  </head>
  <body>
    <div id="product_options">
      <select id="o0">
        <option>1</option>
        <option>2</option>
      </select>
      <select id="o1">
        <option>1</option>
        <option>2</option>
      </select>
      <select id="o3">
        <option>1</option>
        <option>2</option>
      </select>
    </div>
    <script type="text/javascript">
      function optchange(e) {
        alert("optchanged");
      }
      $('product_options').select('select').invoke("observe","change", optchange);
    </script>
  </body>
</html>

2010-06-08 10:27:01

good point, should have checked it with minimum complexity. must be an issue elsewhere. points are yours :)

seengee 2010-06-08 12:58:10

Very useful! How can I know in "optchange" which select triggered it ?

xain 2010-09-27 16:44:08

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observing multiple select menus with prototype

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