Add script on head section without module I have a google add script Which I want to integrate on the head section. How can I add the script to the head section on drupal 7 without any module and info file? Script is below:

 (function () {

        var _onload = function(){

            if (document.readyState &amp;&amp; !/loaded|complete/.test(document.readyState)){setTimeout(_onload, 10);return}

            if (!window.__adroll_loaded){__adroll_loaded=true;setTimeout(_onload, 50);return}

            var scr = document.createElement("script");

        };
});
Add it your theme instead.

html.tpl.php would be the correct template to use.