gistfile1.txt

<form name="form6182" action="javascript:action6182();">
    <input type="text" size="50">
    <input type="submit" value="Show">
</form>
<span></span><script type="text/javascript">//<![CDATA[
        span6182 = document.getElementsByTagName('script');
        span6182 = span6182[span6182.length - 1].previousSibling;
        function action6182 () {
            span6182.innerHTML = document.form6182.elements[0].value;
        }
//]]></script>