<script src="http://write-site.net/jquery-1.3.2.js" type="text/javascript"></script>
<a id="switch" onClick="$('img[id=alakazam]').show('slow');">Show</a>
<img src="http://farm3.static.flickr.com/2628/4192131856_27bdb92d89.jpg" id="alakazam" onClick="$('img[id=alakazam]').hide('slow');"/>

// This code syntax requires that JQuery be imported.
 $(document).ready(function() {
   $("a[name=hello]").click(function() {
     alert("Hello world!");
   });
 });

var x = 0;
var message = "How are you gentlemen !!! \n All your base are belong to us. \n You are on the way to destruction. \n You have no chance to survive make your time. \n Ha Ha Ha Ha. \n";
function how_are_you()
{
current_message = document.main_screen.talking.value;
document.main_screen.talking.value = current_message+message.charAt(x);
x = x+1;
setTimeout("how_are_you()",300);
}

<p>Click in this box to enjoy your message.</p>
<form name="main_screen"> <textarea onclick="how_are_you();"
cols="50" rows="6" name="talking"></textarea></form>

function how_are_you2()
{
document.main_screen2.talking2.value = "How are you gentlemen?";
}

<p>Click in this box to enjoy your message.</p>
<form name=main_screen2>
<input name=talking2 onClick="how_are_you2();">
</form>