You need to create a swf file (macromedia) upload it on server and embed the file in on your page.
This the code for to embed
<object width="320" height="240" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/
swflash.cab#version=6,0,29,0" classid="clsid
27CDB6E-AE6D-11cf-96B8-444553540000">
<param value="flash.swf" name="movie">
<param value="high" name="quality">
<embed width="320" height="240" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/shockwave/download/index.cgi
?P1_Prod_Version=ShockwaveFlash" quality="high" src="http://www.irisinn.net/flash.swf"></embed></object>
and
this is the file thats rotating the images
http://www.irisinn.net/flash.swf