How to display multiple Twitter messages.

[racksfull]

I need help trying to display twitter messages on my page.
I want to be able to change the twitter username with a dropdown list.

Here is what I have so far.
I Can only get one twitter username to work at this time.
I would like for the person vewing the page to change the twitter user name.

<form name="pro">
<select name="players">
<option value="phil_hellmuth"/>Phil Hellmuth
<option value="RealAnnieDuke"/>Anne Duke
<option value="TexDolly"/>Doyle Brunson
<option value="TheMouthMatusow"/>Mike Matusow
</select>
</form>

<ul id="twitter_update_list"></ul>
<script src="http://twitter.com/javascripts/blogger.js" type="text/javascript"></script>
<script src="http://twitter.com/statuses/user_timeline/phil_hellmuth.json?callback=twitterCallback2&count=3" type="text/javascript"></script>

I attempted to replace.

<script src="http://twitter.com/statuses/user_timeline/phil_hellmuth.json?callback=twitterCallback2&count=3"

with

<script src="http://twitter.com/statuses/user_timeline/+'pro.players.value'+.json?callback=twitterCallback2&count=3"

but still did not work. Please Help.
Here is the page http://www.racksfull.blogspot.com
The twitter messages are at the bottom under pro tweets.
Hopefully someone can show me how to pass the form value to the link inside the script tag.
Thanks,

[racksfull]

After finding another thread on here I modified my code.
What I needed was.

document.getElementsByTagName("head")[0].appendChild()

It is functional with a TryIt Editor.
I still need to get it working on my homepage.

<form onchange="fctn()" name="pzz" METHOD="GET">
<select name="plyrs">
<option value="http://twitter.com/statuses/user_timeline/phil_hellmuth.json?callback=twitterCallback2&count=3"/>Phil Hellmuth
<option value="http://twitter.com/statuses/user_timeline/RealAnnieDuke.json?callback=twitterCallback2&count=3"/>Annie Duke
<option value="http://twitter.com/statuses/user_timeline/TexDolly.json?callback=twitterCallback2&count=3"/>Doyle Brunson
<option value="http://twitter.com/statuses/user_timeline/TheMouthMatusow.json?callback=twitterCallback2&count=3"/>Mike Matusow
</select>
</form>

<ul id="twitter_update_list"></ul>
<script src="http://twitter.com/javascripts/blogger.js" type="text/javascript"></script>
<script src="http://twitter.com/statuses/user_timeline/phil_hellmuth.json?callback=twitterCallback2&count=3" type type = "text/javascript"></script>
<script>
function fctn()
{
var twts = document.createElement("script");
twts.type = "text/javascript";
twts.src = (pzz.plyrs.value);
document.getElementsByTagName("head")[0].appendChild(twts);
}
</script>

[racksfull]

Finally got it working.
I had to load it in an IFRAME from a dedicated page
to make it work on my blogspot page.