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Use arguments callee toString() to get the source of the function

< html>     <form>     <input type="button" value="A" OnClick=displayFood(this,"A")>     <input type="button" value="B" OnClick=displayFood(this,"B")>     <input type="button" value="C" OnClick=displayFood(this,"C")>     <input type="button" value="D" OnClick=displayFood(this,"D")>     <input type="button" value="E" OnClick=displayFood(this,"E")>     </form>     <script language="JavaScript">     <!--     function displayFood()     {       var aString = arguments[0].value;       aString += "'s is ";       aString += arguments[1];       alert(aString);       alert(arguments.callee.toString());     }     -->     </script>     </html>