Shopify Liquid: If Statement - shopify

Question

I am trying to enable a div class based on when a user views certain web page eg: blog, index or ../page/webpage
The code is like this:
{% unless template contains "index" and settings.slideshow_enabled %}
<div class="container main content">
{% endunless %}
That "container main content" shows an image behind the nav bar. On other pages, the image starts from below the nav bar. A clear example here: http://retina-theme.myshopify.com/
I want to have that same homepage, link the link above, on selected pages or template:
{% if template == "index" and template == "page" and settings.slideshow_enabled %}
<div class="container main content">
{% endif %}
So far nothing I have tried worked. Any tips?
Edited:
I can't answer my own question as yet but this worked with a tweak to the javascript:
{% unless template contains "page" or template contains "index" and settings.slideshow_enabled %}
<div class="container main content">
{% endunless %}

Answer 1

Multiple conditions in if statements don't work so well in liquid. See a similar question here.
One option is to use nested if statements:
{% if template == "index" or template == "page" %}
{% if settings.slideshow_enabled %}
<div class="container main content">...</div>
{% endif %}
{% endif %}
Or something like this:
{% if template == "index" or template == "page" %}
{% assign correct_template = true %}
{% endif %}
{% if correct_template and settings.slideshow_enabled %}
<div class="container main content">...</div>
{% endif %}