Adds or removes prestate options.

Prestate options are simple true/false flags that are added to the URL of the page. Use <if prestate=...> to test for the presence of a prestate. <apre> works just like a <a href=...> container tag, but the href attribute can be omitted in which case the current page is used.

Attributes

option

Add the prestate option.

-option

Remove the prestate option.

href

Make the generated link point to this URL. The URL must be local to this web site.

Example

<apre foo>Add the option</apre>
<br><apre -foo>Remove the option</apre>

<p><if prestate=foo>
The option is set.
</if>
<else>
The option is not set.
</else>

The option is not set.