<SCRIPT LANGUAGE="javascript" TYPE="text/javascript">
function button_a()
  {
  document.images["Butt_a"].src ="Butt_a.gif"
  }
</script>

<center>
<FONT color='ff0000' size=+1>
<FORM>
<INPUT TYPE="button" NAME="btnchange"
value="Question here..."
ONCLICK="button_a()">
</FONT>
</FORM>
<p>
<IMG src="blanck.gif" name="Butt_a">
</CENTER>
