Using Parameters for HTML Attributes

I have a stylesheet that is currently generating HTML like the following:

	<img src="./images/somepic.gif" />

What I would like to do is get away from the relative addressing and use a
parameter to provide the absolute pathing:

<xsl:param name="baseURL" />

>From within my jscript I set the parameter:

objXSLProc.addParameter("baseURL","http://some.com/somedir/")

Within my style sheet I want the HTML output to be:

	<img src="http://some.com/somedir/images/somepic.gif" />

What would the syntax in the style sheet be so that the img src attribute
would be the concatenation of $baseURL and "images/somepic.gif"?

Thanks for contibuting to my education!

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list