Como extrair o código HTML de uma imagem em uma página web

<iframe src="http://streamc13.uigc.net/canal13vivo" width="300px" height="300px" frameborder="0" border="0"></iframe>

<script src='http://jajodiasaket.googlecode.com/files/swfobject.js' type='text/javascript'/>

<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="500" height="400" id="slp" ><param name="source" value="http://www.freeetv.com//modules/Video_Stream/plugins/OVP.xap"/><param name="minRuntimeVersion" value="2.0.30923.0" /><param name="onerror" value="onSilverlightError" /><param name="background" value="#000000" /><param name="MaxFrameRate" value="30" /><a href="http://go.microsoft.com/fwlink/?LinkID=124807" style="text-decoration: none;"><img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight" style="border-style: none"/></a><param name="initparams" value="showstatistics=false, autoplay=true, muted=false, playlistoverlay=true, theme=/script2/sl4/sl4themes/SmoothHD.xaml, stretchmode=Fit, wmode=opaque, stretchmodefullscreen=Fit, mediasource=mms://streamc13.uigc.net/canal13vivo" /></object>

<script type="text/javascript" src="silverlight.js"></script>
	<script type="text/javascript" src="wmvplayer.js"></script>
<div id="myplayer">the player will be placed here</div>
	
	<script type="text/javascript">
		var elm = document.getElementById("myplayer");
		var src = '/jw/embed/wmvplayer.xaml';
		var cfg = {
			file:'mms://streamc13.uigc.net/canal13vivo',
			width:'320',
			height:'180'
		};
		var ply = new jeroenwijering.Player(elm,src,cfg);
	</script>