Specifying the QuickTime version (X or 7) in HTML?

Question

Because of the limitations of QuickTime X in Snow Leopard, specifically the inability to authenticate for video streams, I would like to specify in my Web links that the client computers use QuickTime 7 instead of QuickTime X. Unfortunately I cannot find a way for a Web browser to target QuickTime 7 instead of the default QuickTime X in the link syntax.
Here's what I use for my QuickTime link syntax:
<embed
type="video/quicktime"
pluginspage="http://www.apple.com/quicktime/download/"
height="17"
width="19"
src="../../../images/moviesmall.png"
controller="false"
target="QuickTimePlayer"
href="rtsp://server.domain.com/movie.mov"
volume="100"
style="cursor:pointer"/>

Answer 1

I found a workaround, which is to use Javascript to detect who is using Snow Leopard, and who is not.
var isSL = false;
//if the "userAgent" contains the word "mac" and either "10.6" or "10_6", then we're assuming Snow Leopard is being used.
if(navigator.userAgent.toLowerCase().search('mac')>0) {
if(navigator.userAgent.search('10_6')>0 || navigator.userAgent.search('10.6')>0) {
//alert('Snow Leopard');
isSL = true;
From there, I have in-line javascript code to provide links specific for Snow Leopard users.
<!--
if(isSL) {
document.write('<br><a href="rtsp://linktomovie" title="OS X Snow Leopard users click here and browse for \'QuickTime 7\'">NOTE: You are using OS X 10.6 Snow Leopard! Click here </a>');
} else {
document.write('Code for standard quicktime <embed /> tag');
-->