Problem with Checking for a node.

Hi 
<A name="A">
	<B name="dyd>
	<C name = "ttt>
	<D name = "ggg>
</A>

I want an xslt for this psuedo code.
<xsl:template-match="/">
	<xsl:apply-template />
</xsl:template>
<xsl:template match="node()|@*">
    If(the current node is not C){
	----some action
    }
< xsl:apply-template />
</xsl:template>

Thanks,
Laxmi Narayana Babu.