Megamenu click animation slide

Hello,

i did a little customization on the Megamenu so there the menu is animated when i click on it.

I just added the two classes (animate slide) in \menu\megamenu.tpl.php :

$cls  = ' class="t3-megamenu animate slide ' . ($trigger == 'hover' && $animation ? ' animate ' . $animation : '') . '"';

All is working perfectly only Not in IE.

Problem that i have is internet explorer. The animation is not working and the menu closes right away when i click on it. I figured out its this part of code in the file \base-bs3\js\menu.js :

Line 282 to 284, when hide is called and the item.$item.removeClass('open') is called.

How can i fix that?

What connection does this have with Internet Explorer? Why is hide called? How is this rendered in Chrome that is working?

Thank you very much for your help.