<td id="form"

    style="float:left; display:block; vertical-align:top">

<form action="&_url"

      target="results"

      onSubmit="processing();">

<input type="hidden"

       name>="_program"

Define the HTML form. The target attribute directs the output of the form submission to the iframe defined in the stpTrailer SAS Server Page. The onSubmit calls the processing JavaScript function that defines the HTML text to display in the output area that informs the user that the request is processing.