Flash background in HTML?

Is is possible to have an .swf file as a background in an HTML file so that it covers the users browser 100%? I am able to get the background as 100% scalable but I am having a hard time figuring out how to add tables and content to it? I would like for it to be compatible in IE and FireFox. Heres a snippet of the div tag and swf settings.

Sorry if this is the wrong category for this thread and thanks in advance.

This is placed in between my body tags.

<div id=“branding” style=“position:absolute; left:0px; top:21px; width:100%; height:100%; z-index:199; visibility: visible; background-color: #FFFFFF; layer-background-color: #FFFFFF; border: 1px none #000000;”>
<object classid=“clsid:D27CDB6E-AE6D-11cf-96B8-444553540000” codebase=“https://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0” height=“100%” hspace=“0” vspace=“0” width=“100%”>
<param name=“loop” value=“false”>
<param name=“menu” value=“false”>
<param name=“movie” value=“bg_login.swf”>
<param name=“quality” value=“high”>

<embed src=“bg_login.swf” height=“100%” hspace=“0” loop=“false” menu=“false” quality=“high” pluginspage=“https://www.macromedia.com/go/getflashplayer” type=“application/x-shockwave-flash” vspace=“0” width=“100%”/>
</object>

</div>