The onFocus event handler is an event handler that notifies you when the focus is set on the radio button.
<html> <head> <title> Example of the radio onFocus event handler</title> </head> <body> <script language="JavaScript"> <!-- function showFocus(){ alert("Focus set on Box 1"); } --> </script> <form name="form1"> Click on the radio button <br><br> <input type="radio" name=button1 onFocus='showFocus()'>Box 1 </form> </body> </html>
