in src/main/resources/js/bootstrap-2.3.2.js [1886:1901]
, show: function () {
var pos = $.extend({}, this.$element.position(), {
height: this.$element[0].offsetHeight
})
this.$menu
.insertAfter(this.$element)
.css({
top: pos.top + pos.height
, left: pos.left
})
.show()
this.shown = true
return this
}