JavaScript - Updating Href Of Link With Shadowbox & Flash

Shadowbox.init({
	
	skipSetup: true 

});

window.onload = function() {

	Shadowbox.setup("a.mygallery-elements", {
	gallery: "mygallery"

	});

};

var getPass = function(el){
  var ct = 3, thePrompt = 'Please Enter Your Password', theDefault = ' ', pw = '';
  while(ct-- && pw !== 'pass'){
    pw = prompt(thePrompt, theDefault);
    if(pw === null){ ct = 0; }
    thePrompt = 'Password Incorrect, Please Try Again';
    theDefault = 'Password';
  }
  if(pw === 'pass'){
    Shadowbox.open(el);
  }
  return false;
};

<script type="text/javascript" src="/shadowbox/libraries/mediaplayer/jquery.js"></script>      
      <script type="text/javascript" src="/shadowbox/shadowbox.js"></script>
      
      <script type="text/javascript" src='/shadowbox/libraries/mediaplayer/swfobject.js'></script>
<script type="text/javascript">
function moveCloseLink(){ 
    var cb=document.getElementById('sb-nav-close'); 
    var tb=document.getElementById('sb-title'); 
    if(tb) tb.appendChild(cb); 
} 
Shadowbox.init({
	onOpen: moveCloseLink,
flvPlayer: '/shadowbox/player.swf',
language: 'en',
players: ["flv","iframe"],
flashParams: {allowfullscreen:'true'},
flashVars: {
skin: '/shadowbox/modieus.swf',
image: '/upload/demo-poster.jpg',
autostart: true
}
});
</script>

<A HREF="/gallery/archive_iframe.html" rel="shadowbox;width=750;height=486" class="imgLink" title="Video Archive"><img src="gallery/videoarchive_thm.jpg" alt="Launch Video Archive (popup window)" width="260" height="162" border="0" /></A>

<script type="text/javascript">

if (location.href.match(/folder/)) {

document.getElementById("div-layer").style.display="block";

}

</script>

<a onclick="return f();" href="../jsp/...">

function f()
{
     return true;
}

<span class="posted-by">
<a href="/from_the_heart/author/namesurname">
<img class="inline-icon user-registered-icon" src="/universal/images/transparent.png" alt="Author" title="Author">
Name Surname
</a>
</span>

function doit() {
if($('div').hasClass('single-journal-entry-wrapper')) 
	
{ 

var theURL = null;

       var spans = document.getElementsByTagName("span");
       for ( var s = 0; s < spans.length; s++ )
       {
           // searching through spans for the class name:
           var span = spans[s];
           if ( span.className.indexOf("posted-by") >= 0 )
           {               
               var useit = span.getElementsByTagName("a")[0];              
               theURL = useit.href;
               break; // Here things deviate.I need the text inside the href
           }
        }
        if ( theURL == null ) 
        {
          alert("failed!");
        } else {

               var parts = theURL.split('/');
               var result = parts[parts.length-1];

             
             if (result == "christopheryen") { 
                var txt=document.getElementById("author");
				txt.innerHTML="adsfasdfasdf";
				
                 } else if (result == "juliapatrick") {etc.}

<h2 class="postTitle" style="display: none;"><a href="URL to copy">LI Name</a></h2>
<a href="Copied URL"><img alt="" src="LI Image" /></a>
<a href="Copied URL">LI Name</a>

<a href="javascript:get('246154895')" class="postid">ID</a>

var posts = document.getElementsByClassname('postid');

for (i=0; i<posts.length; i++) {
	//Replacing
}

<a onclick="doRate('-1', '{$id}'); return false;"><img src="{THEME}/dleimages/down.gif" title="Blogai(-)" alt="Blogai(-)" class="r2-unit" width="16" height="16" align="absmiddle" /></a>

<a onclick="doRate('-1', '{$id}'); return false;" href="llink.html"><img src="{THEME}/dleimages/down.gif" title="Blogai(-)" alt="Blogai(-)" class="r2-unit" width="16" height="16" align="absmiddle" /></a>

<td class="MyButtonStyle">
<a href="#" OnClick="MyFunction();" title="Save changes and continue">SAVE</a>
</td>

1. href="#" onclick="MyFunction();return false;"

2. href="#null" onclick="MyFunction();return false;"

3. href="NoJavaScriptAbility.htm" onclick="MyFunction();return false;"

4. href="#" onclick="return MyFunction();"

5. href="javascript:;" onclick="return MyFunction();"

6. href="javascript://" onclick="return MyFunction();"

7. href="javascript:void(0);" onclick="return MyFunction();"

8. href="javascript:MyFunction();"