I'd set a class
on the html
element to identity your page. That way you can have javascript as well as css react to what type of page you're on. Not that you need css in this particular example, but down the line use-cases might pop-up and then you already have a solution in place.
edit:
Adding class
dynamically through a tiny script:
//script in specific page
<script>pagetype = "page2"</script>
//script as part of layout template shared between pages
<script>
$(function(){
$("html").addClass(pagetype);
})
</script>