Copy inline-js.php to direcotry wp-contents/plugin and activate the plugin.
Setup
Disable tag balancing ‘WordPress should correct invalidly nested XHTML automatically’ through the ‘Options / Write’ menu in WordPress
Disable the WYSIWYG rich editor in the user’s settings through the ‘Users / Your Profile’ menu
Assign the ‘unfiltered_html’ capability to the user. Assigning capabilities to roles or users is out of the scope of this plugin. Because WordPress has no built-in configuration menu in the admin menu to assign roles/capabilities, you need to install the role/capability manager plugins role-manager.
Use [inline] and [/inline] tag around the javascript,and post it