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alienxp03

onChange javascript

Aug 8th, 2012
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  1. <html>
  2.  <head>
  3.   <script type="text/javascript">
  4.     window.onload = function() {
  5.         var eSelect = document.getElementById('selOption');
  6.         var text = document.getElementById('txtInput');
  7.         eSelect.onchange = function() {
  8.             if(eSelect.value == 'A') {
  9.                 text.value = 'Selected A';
  10.             } else if(eSelect.value == 'B') {
  11.                 text.value = 'Selected B';
  12.             } else if(eSelect.value == 'C') {
  13.                 text.value = 'Selected C';
  14.             } else if(eSelect.value == 'D') {
  15.                 text.value = 'Selected D';
  16.             }
  17.         }
  18.     }
  19.   </script>
  20.  </head>
  21.  <body>
  22.     <select id="selOption" name="selOption">
  23.         <option value="A">A</option>
  24.         <option value="B">B</option>
  25.         <option value="C">C</option>
  26.         <option value="D">D</option>
  27.     </select>
  28.     <input type="text" id="txtInput" />
  29. </body>
  30. </html>
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