ion( element ) {
				if ( element.preventFunc && element.preventFunc() ) {
					return false;
				}

				// If element is already fixed we are checking it's placeholder.
				var related = ( element.isFixed ? element.placeholder : element.element ),
					clientRect = related.$.getBoundingClientRect(),
					staticHeight = this.staticContainer.getSize('height' ),
					elemHeight = element.element.getSize( 'height' );

				if ( element.isFixed ) {
					return ( clientRect.top + elemHeight < staticHeight );
				