There is a jscript error in one of your script:
Uncaught ReferenceError: $j is not defined click2fit.js:10
$j(':button:contains(My Button)').click(changeClass);
Regarding the positioning of your tooltip, the issue is in your function here:
$( document ).tooltip({
position: {
my: "center bottom-20",
at: "center top",
using: function( position, feedback ) {
$( this ).css( position );
$( "<div>" )
.addClass( "arrow" )
.addClass( feedback.vertical )
.addClass( feedback.horizontal )
.appendTo( this );
}
It works well for a simple anchor element like "tooltip" but it doesn't work for your multi-select menus.
You could provide different positioning functions based on the type of the elements.