I have jQuery to just add a down arrow to a multi-select.
jq("[name='OngoingServices_worktypes[] '").prepend(
'<span class=\"ui-icon ui-icon-triangle-1-s\"></span>'
);
I updated 1.2 to 1.3.2. Now arrow and text are on two lines. I fixed it though with this CSS.
.ui-icon-triangle-1-s {
float: right;
}