Objectreferenz Submit Button

[unreality]

<form name="test" action="blabla" method="post">
<input type="hidden" name="goNext" value="1">
<input type="text" name="size" class="InputBox">
<input name="abschicken" type="image" src="Bilder/bnext1.png" alt="" id="absenden">
</form>

<script type="text/javascript">
<!--
  var obj = document.getElementById( 'absenden' );
  if ( obj )
  {
    // stell dein zeug mit obj an
  }
//-->
</script>