animate swapping 2 forms

				// Get the bounding boxes and delta
				var beforeFormBounds = beforeForm.getBoundingClientRect();
				var formBounds = form.getBoundingClientRect();
				var formDelta = formBounds.top - beforeFormBounds.top;
				var beforeFormDelta = beforeFormBounds.top - formBounds.top;

				// Move the dom node
				this.insertBefore(form, beforeForm);
				this._reIndexForms();
				this.updateOrdering();

				// Animate the transform
				requestAnimationFrame(function() {
					// Before the dom paints invert to it's old position
					form.style.transform = 'translateY(' + beforeFormDelta + 'px)';
					beforeForm.style.transform = 'translateY(' + formDelta + 'px)';

					// Do the instant invert
					form.style.transition = 'transform 0s';
					beforeForm.style.transition = 'transform 0s';

					// Now animate
					requestAnimationFrame(function() {
						form.style.transform = '';
						form.style.transition = 'transform 500ms';
						beforeForm.style.transform = '';
						beforeForm.style.transition = 'transform 500ms';
					}.bind(this));
				}.bind(this));