I\'m using Twitter Bootstrap and some custom css (found here) to have dropdown menus open up on mouseover.
I am using the \"caret\" on a on the root menu items to show
I do it by adding a class that simply modifies the border styles to point the caret to the right. That way you can toggle a caret right/down by adding/removing the modifying class.
HTML:
CSS:
.caret-right {
border-left: 4px solid;
border-bottom: 4px solid transparent;
border-top: 4px solid transparent;
}