Has anyone used this plugin?

I would put the icon "+" on the right side of the item, but I can not change the code:

2. // create hitarea if not present
3. var hitarea = this.find("div." + CLASSES.hitarea);
4. if (!hitarea.length)
5. hitarea = this.prepend("<div class=\"" + CLASSES.hitarea + "\"/>").find("div." + CLASSES.hitarea);
6. hitarea.removeClass().addClass(CLASSES.hitarea).each(function() {
7. var classes = "";
8. $.each($(this).parent().attr("class").split(" "), function() {
9. classes += this + "-hitarea ";
10. });
11. $(this).addClass( classes );
12. })