/* The following styles make it look more effective: */

#collapsible li {
	list-style-type: square;
}

#collapsible li.open * {
	/* Style for open items and contents */
}

#collapsible li.open, li.closed {
	/* Style for all items */
}

#collapsible li.open {
	/* Style for open item */
	list-style-type: circle;
}

#collapsible li.closed {
	/* Style for closed item */
	font-weight: bold;
	list-style-type: disc;
}

#collapsible li.closed:before {
	/* Works in most browswers, but not IE up to 7. Of course */
	/* content: '+'; */
}

#collapsible li.open:before {
	/* Works in most browswers, but not IE up to 7. Of course */
	/* content: '-'; */
}