topical media & game development

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basic-web-html-11-ch11-eg05.htm / htm



  <?xml version="1.0" ?>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
  <head>
  <script type="text/JavaScript">
    function calculateArea(width, height) {
      area =  width * height 
      return area 
    }
  </script>
  <title>Area calculator</title>
  </head>
  
  <body>
  <form name="frmArea">
  
  Enter the width and height of your rectangle to calculate the size:<br />
  Width: <input type="text" name="txtWidth" size="5" /><br />
  Height: <input type="text" name="txtHeight" size="5" /><br />
  <input type="button" value="Calculate area" onclick="alert(calculateArea(document.frmArea.txtWidth.value, document.frmArea.txtHeight.value))" />
  
  </form>
  </body>
  
  </html>
  


(C) Æliens 20/2/2008

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