Insert Flash with Javascript

Is it possible to embed a swf with a javascript function?

Call the function from flash:

on(rollOver) {
getURL(“javascript:insertFlash()”);
}

Then have a javascript function to insert the following embed code into my index page

<div style=“width: 518px; height: 0px;visibility:hidden” id=“windowcontent”>
<object classid=“clsid:d27cdb6e-ae6d-11cf-96b8-444553540000”
codebase=“http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0
width=“738” height=“500” id=“Popup” align=“middle”>
<param name=“allowScriptAccess” value=“sameDomain” />
<param name=“movie” value=“bannerads/Popup.swf” />
<param name=“wmode” value=“transparent” />
<param name=“scale” value=“exactfit” />
<param name=“quality” value=“high” />
<param name=“bgcolor” value="#333" />
<param name=“Popup” value=“true” />
<embed src=“bannerads/Popup.swf” name=“Popup” allowScriptAccess=“sameDomain”
type=“application/x-shockwave-flash” pluginspage=“http://www.adobe.com/go/getflashplayer
quality=“high” bgcolor=“FFFFFF” width=“738” height=“500” wmode=“transparent” align=“middle” />
</object>
</div>