Inclusion of more than two JQuery libraries creates problems

Question

I am including these JQuery libraries:

src=\"JQuery/jquery-1.4.2.min.js\"
src=\"JQuery/jquery-ui-1.8.6.custom.min.js
src=\"JQuery/menu_login.js\"
src=\"GjQuery/         


        

Answer 1

What is the purpose behind including multiple versions of jQuery?

If you can, use only 1 (newest hopefully) version.

Alternatively, if each plugin you are using requires a different version, use NoConflict and make sure each plugin gets the correct version that it needs. You can also use closures and self invoking functions to still use $ like normal, while controlling which version you're using.

<script src="http://code.jquery.com/jquery-1.4.2.js"></script>
<!-- other scripts that depend on 1.4.2 --->
<script>
var $.1.4.2 = $.noConflict(true);
</script>

<script src="http://code.jquery.com/jquery-1.2.6.js"></script>
<!-- other scripts that depend on 1.2.6 --->
<script>
var $.1.2.6 = $.noConflict(true);
</script>

<script>
(function($){  
  // $ in here is jQuery 1.4.2 
})($.1.4.2);

(function($){
  // $ in here is jQuery 1.2.6 
})($.1.2.6);
</script>