Problem with Javascript's String::split method in IE

I'm having a problem with splitting a string into lines in Javascript. 
An initial test is at

     http://scott.sauyet.com/Javascript/Issues/LineSplit/1.html

Firefox and Opera do what's expected, but IE is doing something … bizzare.

I'm trying to go after this text:

     <pre><code id="test">Here is some sample text.

     Above this is a blank line.
     And below this is another one.

     And below this one are two more.


     That concludes our demonstration.</code></pre>

With this Javascript:

     window.onload = function() {
         var element = document.getElementById("test")
         var text= element.innerHTML;
         var lines = text.split(/\r\n|\r|\n/);
         var s = "";
         for (var i = 0; i < lines.length; i++) {
             s += (i + 1) + ": " + lines[i] + "\n";
         }
         alert(s);
     };

This is the output from Opera and Firefox:

     1: Here is some sample text.
     2:
     3: Above this is a blank line.
     4: And below this is another one.
     5:
     6: And below this one are two more.
     7:
     8:
     9: That concludes our demonstration.

This is what I get from IE:

     1: Here is some sample text.Above this is a blank line.
     2: And below this is another one.And below this one are two more.
     3: That concludes our demonstration.

One interesting change is if I remove the <code> block and put the id 
directly on the <pre> element, which I try in

     http://scott.sauyet.com/Javascript/Issues/LineSplit/1.html

Firefox and Opera both still do as expected, but IE responds with:

     1: Here is some sample text.
     2: Above this is a blank line.
     3: And below this is another one.
     4: And below this one are two more.
     5: That concludes our demonstration.

In this case, IE splits the lines correctly, but ignores blank lines. I 
really want to be able to go after the <code> element, and I need the 
blank lines too, so this is only marginally helpful.

Any suggestions would be greatly appreciated.

Thanks,

   -- Scott



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