Function that returns to original frame

I have an XML documented which was converted to HTML. When a user
clicks on an animation or jpeg link, the single frame view is split into two frames: Text on the left frame and the animation or figure displayed in the right frame. I think need to include a variation of the script:

onClick="MM_goToURL('parent','frameset.htm');return document.MM_returnValue"

The right frame should probably have a close script like:

<FORM>
<INPUT TYPE="BUTTON" VALUE="Go Back"
ONCLICK="history.go(-1)">
</form>

Unfortunately, I have close to 60 steps, which all require a split display and the functionality to return to the main frame. Rather than create 60 frame.htm files, I need help tweaking the script to reuse the same right frame every time I open an animation. Below is the On_Double_Click script that I have now to hyperlink to the figures and animation.

function onDoubleClick() {

var rng = ActiveDocument.Range;
var currentNode = rng.ContainerNode;

// check if
if (!currentNode)
return;

rng.SelectNodeContents(currentNode);

if (currentNode.nodeName == "ulink")
onDoubleClickULink(rng);

}

// Launch default application depending on filename specified
function onDoubleClickULink(select)
{

// local vars
var sFilename = "";
WSHShell = new ActiveXObject("WScript.Shell");

// make sure there is a URL attribute and read its value
if (select.ContainerNode.hasAttribute("URL"))
sFilename = select.ContainerAttribute("URL");
else
{
// Do we want to tell the user it doesnt have a URL attribute
// or do we simply want to return ? For now we'll just return
// Application.Alert("No URL attribute specified on current ULink element.");
return;
}

// Verify if the document exists or not
oFSO = new ActiveXObject("Scripting.FileSystemObject")
if (!oFSO.FileExists(sFilename))
{
// Do we want to tell the user that the file doesnt exists or
// do we just return ? For now we'll tell the user AND return
Application.Alert("The file path is invalid.");
return;
}

// Run command to open URL...
WSHShell.Run("rundll32 url.dll,FileProtocolHandler " + sFilename, 1, false);

// Cleanup...
WSHShell = null;

}

onDoubleClick()

I apologize for posting two requests in one thread, but they are related. I would appreciate any help or direction on resolving one or both functions. Thanks - sooline