sharepoint designer saves the changes but it does not affect

I add a tag to my page source in share point designer to use in my javascript,

and then save i开发者_开发问答t. but when I refresh my page, it shows me that its not saved.

Have you checked that version control isn't acting on that resource? You should check in a major version to publish it.

Right click on the page and then there is an option to check in a major version (see below screenshots).