in website/static/cdocs/dynsections.js [30:45]
$('table.directory tr').each(function() {
var l = this.id.split('_').length-1;
var i = $('#img'+this.id.substring(3));
var a = $('#arr'+this.id.substring(3));
if (l<level+1) {
i.removeClass('iconfopen iconfclosed').addClass('iconfopen');
a.html('▼');
$(this).show();
} else if (l==level+1) {
i.removeClass('iconfclosed iconfopen').addClass('iconfclosed');
a.html('►');
$(this).show();
} else {
$(this).hide();
}
});