tutorial/converter.html

   1 <script>
   2 function convert() {
   3   var n = parseInt(document.getElementById('input').value);
   4   if (isNaN(n))
   5     document.getElementById('result').innerHTML = "not a number";
   6   else
   7     document.getElementById('result').innerHTML = "0x" + n.toString(16);
   8   event.preventDefault();
   9 }
  10 </script>
  11 <body style='font-size:200%'>
  12 <form style='margin:5em' onSubmit='convert()'>
  13 <input style='width:4em; font-size:100%' type='text' id='input'/> <input type='submit' style='width=6em; font-size:100%' value='convert'> = <span id='result' style='display:inline-block; min-width:4em; border-bottom:1px solid; text-align: right'></span>
  14 </form>
  15 </body>