Download speed page (Run PHP / JS scripts)

Last night everything was fine, there were no lags / bugs. I woke up this morning and can't find a problem. So.

I have a slider at the beginning of the page. In the admin panel, I added the ability to collapse it. In expanded form, it looks like this: joxi_screenshot_1474553856809.png http://s16.postimg.org/lhkccclhx/joxi_screenshot_1474553856809.png

In collapsed: joxi_screenshot_1474553856809 (1) .png http://s13.postimg.org/h36fv47hz/joxi_screenshot_1474553856809_1.png

In the header of the site, I connect everything you need:

<link rel="stylesheet" href="<?= PATH ?>css/admin.css"> <script src="<?= PATH ?>js/jquery.js"></script> <script src="<?= PATH ?>js/storage.js"></script> <script src="<?= PATH ?>js/cookie.js"></script> <script src="<?= PATH ?>js/transliteration.js"></script> <script src="<?= PATH ?>js/tinymce/tinymce.min.js"></script> <script src="<?= PATH ?>js/control_panel.js"></script> <link rel="shortcut icon" href="<?= PATH ?>image/favicon.png" type="image/png"> 

Execution script itself:

 $(document).ready(function () { var sliderBlock = $('.sliderBlock'); var hideSlider = $('#hideSlider'); var storage = $.localStorage; if (storage.get('_slider') == 'hide') { sliderBlock.css({'height': '50px'}); hideSlider.css({'transform': 'rotate(-45deg)'}) } hideSlider.click(function () { if (storage.get('_slider') == 'show' || !storage.get('_slider')) { storage.set('_slider', 'hide'); sliderBlock.css({'height': '50px'}); hideSlider.css({'transform': 'rotate(-45deg)'}) } else { storage.set('_slider', 'show'); hideSlider.css({'transform': 'rotate(0)'}); sliderBlock.css({'height': '350px'}) } }) }); // Slider SHOW / HIDE functions 

I connected the storage.js library, when loading the page it checks the value of storage.get('_slider') , it can be hide and show . I always had a hide .

Yesterday, even when the page was loaded, the slider always loaded in a minimized form; today, I don’t know why, the page with the open slider is loaded, and then the slider is reduced to 50 pixels. I am puzzling all day because of what could have happened.

Could this be due to the speed of PHP scripts? What could be the reasons?

UPDATE | file description control_panel.js

And so, everyone else goes after the slider control function.

1. Opens / closes the login window. Starts working by clicking on a button.
2. Hides a block of messages with an answer to an action that appears after reloading the page. It works only if there is such a response from the server, and hides the block by clicking
3. AJAX data transfer method post, after changes were observed in different input, including in the slider. Slider text is transparent
4. Opening and hiding information blocks. They are only on one page, also works by clicking on the button
5. Transliteration url (from Cyrillic to Lat. By clicking on the button).
6. TinyMCE - turns everything into an HTML editor

No more features. Only one slider has always worked and works on all pages and immediately when the page loads