Theme development

Ok, I'm sure this is a pretty simple solution that I have been able to get around by using modules, but I have never been able to figure out why my jquery scripts when added to my scripts folder and my themes .info file do not effect the output of the block.

For example....

Hi folks, I've tried every configuration of search for this and haven't come up with anything...

I'm wondering if anyone can help me with, or point me to, a theme function for switching the logo image based on viewport size. I can do it with pure CSS and background images, but I'd like to switch the actual image, as I'm not sure that is the best solution.

Thanks in advance!

How can I put a hyperlink to a specific excel sheet?
Thanks

Created a view using bootstrap grid format and would like a static "header" image to be inline with the rest of the grid...what is the best way to do this?

Ok first off I am pretty new to Drupal so go slow.

I have a template file for the sitemap module and it outputs my 'Main Menu' from the Menus tab. The code looks like this:

<?php
if($menus): ?>
            <div class="site-map-menus">
              6<?php print $menus; ?>
            </div>
          <?php endif; ?>
?>

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like taxonomy,
I can use api taxonomy_term_load to get taxonomy object.

but in ubercart,
how to get the product price value or object or array and buy button by node id?

thanks!