Wp Plugin Header Image Slider width fix

function boom_nivo_slider_options() {
    extract( boom_slider_get_option() );
    $pauseOnHover = ( $hoverpause == 'on' ) ? 'true' : 'false';
    $keyboardNav = ( $keyboard == 'on' ) ? 'true' : 'false';
    $directionNav = ( $direction !== 'hide' ) ? 'true' : 'false';
    $directionNavHide = ( $direction == 'rollover' ) ? 'true' : 'false';
    $controlNav = ( $navcontrols == 'on' ) ? 'true' : 'false';
    return "
        effect: '{$transition}',
        slices: {$slices},
        animSpeed: {$speed},
        pauseTime: {$pause},
        pauseOnHover: {$pauseOnHover},
        keyboardNav: {$keyboardNav},
        directionNav: {$directionNav},
        directionNavHide: {$directionNavHide},
        controlNav: {$controlNav},
        beforeChange: function(){
            jQuery('.nivo-slice,.nivo-box').removeClass('fullwidth-fix');
        },
        afterChange: function(){
            jQuery('.nivo-slice,.nivo-box').addClass('fullwidth-fix');
        },
        afterLoad: function(){
            jQuery('.nivoSlider.headerSlider').css('text-align','center');
            jQuery('.nivoSlider.headerSlider,.slider-wrapper.theme-default').css('width','100%');
            jQuery('.slider-wrapper.theme-default').css('overflow','hidden');
       }
    ";
}