etSize( 'width' ) + 'px' );
					placeholder.setStyle( 'height', element.element.getSize( 'height' ) + 'px' );
					placeholder.setStyle( 'margin-bottom', element.element.getComputedStyle( 'margin-bottom' ) );
					placeholder.setStyle( 'display', element.element.getComputedStyle( 'display' ) );
					placeholder.insertAfter( element.element );

					this.staticContainer.append( element.element );

					this.active.push( element );
				}

				element.isFixed = !element.isFixed;
			},

			shouldBeFixed: funct