How do I tell regexp to exclude html tags?

[chainspell]

My very first post here :) I know my way around vb and js but I'm lost with regular expressions.. Anyways I have my function below, and my problem is the function changes all words into links... even the ones inside html markups like <a href, <img, etc.

What do I need to change on the RegExp to fix that?

Thanks so much!

function linkWord(){
  var y = document.getElementById("main").getElementsByTagName("div");
  for (var i=0;i<y.length;i++){
	var cname = y[i].getAttribute("class");
	if (cname == "post-body") { 
	  var x = y[i].innerHTML;
	  var reg = new RegExp ('\\b(' + wordlist + ')\\b','gi');
	  x = x.replace(reg, '<a href="/search/label/$1">$1</a>');
	  y[i].innerHTML = x;
	}
  }
}

[gits]

hmmm ... perhaps you could tell with plain text what you want to replace in the innerHTML of the divs? just for me ... so that i might understand the requirement a bit better :)

kind regards