I thought this would be easy to do but I can\'t find a way.
I have a ListBox with selection mode set to multiple but I the user wants to be able to select multiple i
Googled it and find the following: http://www.erichynds.com/jquery/jquery-ui-multiselect-widget/
Here is some pointers:
The just type:
$(function(){
$("select").multiselect();
});
Of course you need to reference jQuery as well, and the css to make it look good.
What the widget does is that it takes an select list and turn it create a list of checkboxes around it and styles them properly.
A simple jsfiddle example I put together: http://jsfiddle.net/AFVfQ/1/
It is not perfect, but it should show you how it works. Note the resources on the left hand side, the I'm referencing jquery ui css and a theme.