xtemplate not equals boolean

[PatrickS]

Hi,
I have
'<tpl if="Available">',
'<div style="background-color: #3CB371">',
'</tpl>',

This works, but xtemplates do not support else statements. When it is not available, I need to assign an other color. In what way can I say "if not available"?

Patrick

[Animal]

!Available

It's Javascript.