Truncating long words with javascript - need help adjusting code

At the moment I’m using the following code to truncate words that are over 15 characters long, and add ‘…’ onto the end to show the word has been truncated - im using this on part of a forum where users post the words so I have no control over the length of the word but need to make sure the layout of the page doesnt mess up.

Placed inbetween head tags


<script language="javascript" type="text/javascript">
<!--
var mxw_max = 5;
function mxw(id)
{
  if (!document.getElementById) return;
  var n = document.getElementById(id);
  if (!n || !n.nodeType) return;
  mxw2(n);
}
function mxw2(n)
{
  if (n.nodeType == 3 /*Node.TEXT_NODE*/)
  {
	var flag = 0;
	  var words = n.data.split(" ");
	for (var i = 0; i < words.length; i++)
	{
	  if (words*.length > mxw_max)
	  {
		flag++;
		words* = words*.substr(0, mxw_max-2) + "... "; 
	  }
	}
	if (flag > 0) n.data = words.join(" ");
  }
  var children = n.childNodes;
  for (var i = 0; i < children.length; i++) mxw2(children*); 
}
//-->
</script>

Then on the page I use the following around the user posted text to truncate the word.


<div id="shorten">Userpostedtextishere</div><script language="javascript" type="text/javascript">mxw("shorten");</script>

So ‘Userpostedtextishere’ would become ‘Userpostedtex…’

The problem is that I can only use this on one part of the page - unless i give different ID’s to all the divs on every part of the page where I need to use it.

How can I get this to work so I can use the same div and script around the words on every part of the page?

(BTW: Im know nothing much about javascript as I’m just a html person - so please dont just tell me the changes to the header code I must make as I probably wont understand)

All help will be appreciated a lot!

Thanks,