use <xsl:value-of> within an attribute value

["Xu, Xiaocun" <XXu@xxxxxxxxxxxxxxxxxx>]

Hi,

	I need a way in my XSL to make change of file asset location
relatively easy.  For example, instead of 

<input type="image" src="C:/webserver/htdocs/Images/back.gif"
onclick="history.back()"/>

I want to replace it with:

<xsl:variable name="filepath" select="C:/webserver/htdocs"/>
<input type="image" 
src="<xsl:value-of select="$filepath"/>/Images/back.gif"
onclick="history.back()"/>

But when I tried it, I got the error:
The character '<' cannot be used in an attribute value.

	Is there a way to do what I wanted?

Much thanks,

Xiaocun Xu
xxu@xxxxxxxxxxxxxxxxxx


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