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professional-javascript-10-AccessingStyleSheetsExample.htm / htm

          <title>Accessing Style Sheets Example</title>
          <style type="text/css">
              div.special {
                  background-color: red;
                  height: 10px;
                  width: 10px;
                  margin: 10px;
          <script type="text/javascript">
              function getBackgroundColor() {
                  var oDiv = document.getElementById("div1");
          <div id="div1" class="special"></div>
          <input type="button" value="Get Background Color" onclick="getBackgroundColor()" />
          <p>The alert displays nothing because the background color of the <code>div</code> is assigned by a class, not by the <code>style</code> attribute.</p>

(C) Æliens 20/2/2008

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