English
<!-- Add the following code to the <body> area--> <input type="button" value="Hide" onclick="csan(did,'none')"> <input type="button" value ="Show" onclick="csan(did,'')"> <input id="did"> <br> <input type="button" value="Hide" onclick="csan(dis,'none') "> <input type="button" value="Display" onclick="csan(dis,'')"> <input id="dis"> <script> function csan(obj,sta){ eval("obj. style.display=""+sta+"""); } </script>