jquery library conflicts

[EHTISHAM]

links in header looks like..

<link rel="icon" href="images/favicon.ico">
<link rel="shortcut icon" href="images/favicon.ico" />
<link rel="stylesheet" href="css/style.css">
<script src="js/jquery.js"></script>
<script src="js/jquery-migrate-1.1.1.js"></script>
<script src="js/jquery.easing.1.3.js"></script>
<script src="js/script.js"></script> 
<script src="js/superfish.js"></script>
<script src="js/jquery.equalheights.js"></script>
<script src="js/jquery.mobilemenu.js"></script>
<script src="js/tmStickUp.js"></script>
<script src="js/jquery.ui.totop.js"></script>
<script src="js/validjs.js"></script>


<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>


<link rel="stylesheet" href="css/homestyle.css">
<meta http-equiv="X-UA-Compatible" content="IE=edge">

<link href="css/side-slider.css" rel="stylesheet" type="text/css" media="screen">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1">

<script src="js/jquery.side-slider.js"></script>

if i comment the below jq library..

<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>

then my stuck-container works on scroll down the page.. but my "username checker" plugin does not work..

 

and... VICE-VERSA...

 

Please help me to get out of this prob...

[Muddy_Funster]

You are loading multiple versions of the same library.  This is going to cause problems.  Pick one (I recommend the more recent one), run with it, and if you get any errors doing that or have any issues with code then post us the errors along with the relevant JS code from your project and we will have a look.  If you're not familiar with JS debugging use the developer tools in chrome or IE by pressing F12 while in the browser or if you are on firefox download the firebug addon.  This will let you see what problems are occurring and where in the scripts they are being thrown.

 

best of luck.