Setting display options with mv_value

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## Setting display options with mv_value

You can specify a value that will be set in the link with the mv_value parameter. It takes an argument of `var=value`, just as you would set a normal variable in a MiniVend profile. Actually mv_value is a misnomer, for you would almost never use it in a form, where you can easily set variable values. You will always specify it in a one-click search with `va=var=value`. Example:

        [page href=scan
              arg="se=Renaissance
                   se=Impressionists
                   va=category_name=Renaissance and Impressionist Paintings
                   os=yes"]Renaissance and Impressionist Paintings[/page]

Now you can display the appropriate category on the search results page with `[value category_name]`.

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