About Moyea Web Player:
Moyea Web Player is an easy-to-use FLV player creator, with which, customizing skinning streaming FLV player and FLV player (flash video player) for website only needs a few mouse-clicks. And the created player can be easily edited via flashvars code.
Its official website is:
http://www.playerdiy.com/

The example about how to implement this in different way:

By Moyea Web Player:
The configurations about whether your customized web Flash video player loads flash video automatically or not, can be configured on the following interface.
http://www.playerdiy.com/images/playback/auto-load.gif

When the "Auto load" option is checked, the flash video in the web video player will be loaded automatically once the web page is opened, otherwise, it won't be loaded until click the Play button.

By flashvars code:
To implement the first demo above with flashvars code, the embed code will be as below:

<script type="text/javascript" src="swfobject.js"></script>
<div id="flashcontent" align="center"></div>
<script type="text/javascript">
var so = new SWFObject('mwplayer.swf','player','500','450','9');
so.addParam('wmode','opaque');
so.addParam('quality','high');
so.addParam('allowfullscreen','true');
so.addParam('allowscriptaccess','always');
so.addParam('flashvars','playerOpts=autoLoad*true*b');
so.write("flashcontent");
</script>

If playerOpts=autoLoad*false*b, the player will not load video automatically. Get more information about flashvars code - http://www.playerdiy.com/support/tutorial/edit-player-with-html.html

Source is http://www.playerdiy.com/configuration/playback/auto-load-video.html