Condition in responsive web help build file

[sandyr987]

I need to add a condition to use publishing template based on a variable. Here is the current code currently in the responsive web help build file.

Code: Select all

<antcall target="dita2webhelp-responsive">
            <param name="clean.output" value="no"/>
            <param name="args.tablelink.style" value="TITLE"/>
            <param name="template" value="${1}${2}templates${file.separator}template_location"/>
        </antcall>

The variable is 'brand' and I want to change the value of 'template_location' based on the variable value.
An if/then statement is good, too. Basically:
if brand is X then <param name="template" value="${1}${2}templates${file.separator}location_x"/> .
if brand is Y then <param name="template" value="${1}${2}templates${file.separator}location_y"/> .
if brand is z then <param name="template" value="${1}${2}templates${file.separator}location_z"/> .

Ideas?