Thanks to this function I could re-activate the last version of MathJax module that gave me a lot of problem only in the front page of my Drupal 7 website. In the post I will describe how I have fixed this issue using the drupal_is_front_page() function with a few lines of PHP.
MAKE ATTENTION: In Drupal 8 is not possible to use drupal_add_library(), drupal_add_css() and drupal_add_js(), so this article written for Drupal 7 doesn't work anymore.
I presented it as a interesting resource to layout design of your web site, I showed a working example in spite of a my error in template page definition. Then I conclude the review with another insert mode and an unfruitful try to install it as a module.
With spritely, a jQuery plugin, your site acquires the ability to animate the background graphic and to give vitality at the HTML and css layout. In this article I explain you how install it and what are the files to modify in order to use it.