count var script...

I need to change this:

<%
Sub WriteSubNav( link, pageTitle, pageDescription )
startAt = InStrRev( link, "/" ) + 1
stopAt = InStr( startAt, link, "." )
If stopAt = 0 Then
nav = link
Else
nav = Mid( link, startAt, stopAt-startAt )
End If
subNavUrl = link & "?navID=" & Escape(nav) _
& "&pageTitle=" & Escape(LCASE( REPLACE (pageTitle," " , "+") ) ) _
& "&pageDescription=" & Escape(LCASE( REPLACE (pageDescription," " , "+") ) )
%>

<a href="<%=subNavUrl%>" class="subNavLink"><%=LCASE( Replace( pageTitle, "_", " " ) )%></a>&nbsp;:

so that it does not put a : sign after the last link

I have been told that the easiest way to do this is to put the : in front of each link except the first one, rather than counting the var's and -1 on them. Could someone help me out with this please. Im not sure how to do it.

Thanks.