code: function getCellWidthType( cell ) {
  		var match = widthPattern.exec(
  			cell.getStyle( 'width' ) || cell.getAttribute( 'width' ) );
  
  		if ( match )
  			return match[ 2 ];
  	}
docs: Reads the unit of width property of the table cell.  * @param {CKEDITOR.dom.element} cell An element representing table cell. * @returns {String} A unit of width: 'px', '%' or undefined if none.