I am using drupalDrupal 7 and iI am creating thean Omega subtheme from omega theme.
In my case iI want a page without left and right sidebars. But when iI inspect the page.tpl.php from alpha theme it contains only this much of code for printing attributes, content and footer regionregions
Here is my page.tpl.php
print $attributes;
if (isset($page['header']))
print render($page['header']);
endif;
if (isset($page['content']))
print render($page['content']);
endif;
if (isset($page['footer']))
print render($page['footer'])
endif;
In the above snipped iI don't find any option to show/hide sidebars as we used to do like in garlandGarland theme.