Удалить столбцы фрейма данных по имени

Я использую http://fallback.io/

  fallback.load({
        // Include your stylesheets, this can be an array of stylesheets or a string!
        page_css: 'index.css',

        // JavaScript library. THE KEY MUST BE THE LIBARIES WINDOW VARIABLE!
        JSON: '//cdnjs.cloudflare.com/ajax/libs/json2/20121008/json2.min.js',

        // Here goes a failover example. The first will fail, therefore Fallback JS will load the second!
        jQuery: [
            '//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.FAIL_ON_PURPOSE.min.js',
            '//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js',
            '//cdnjs.cloudflare.com/ajax/libs/jquery/1.9.0/jquery.min.js'
        ],   .......

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