sja

/**
 * Overridden Ext.util.Format.fileSize for bigger sizes like GB and TB and support localized formats
 * 
 * Simple format for a file size (xxx bytes, xxx KB, xxx MB, xxx GB, xxx TB)
 * 
 * @param {Number/String}
 *            size The numeric value to format
 * @return {String} The formatted file size
 */
Ext.util.Format.fileSize = function(size, formatString) {