blueimp-jquery-file-upload-integrated-with-database and checkbox

Hello i want to read with the id file when user checked a checkbox.the id is the checkbox value and he from the database. I add the checkbox action in main.js but i don't know how to get the variable in index.php this the main.js

$(function () {
'use strict';
$( '.checkbox' ).on( "click", function(){
    if ( $( this ).is( ':checked' ) ){
         $( "#fileupload" ).data( "checkbox", this );
          var checked_value = $( this ).val();
              // alert(checked_value);
               var arr = checked_value .split('-');
              // alert(arr[0]);
        var anomalie2 = arr[0],
        missionID2 = $( "#missionID2" ).val();
        //alert(missionID2);

// Initialize the jQuery File Upload widget:
$('#fileupload').fileupload({
    // Uncomment the following to send cross-domain cookies:
    //xhrFields: {withCredentials: true},
    anomalie_id : anomalie2,
    mission_id  : missionID2,
    url: 'server/php/'
});

// Enable iframe cross-domain access via redirect option:
$('#fileupload').fileupload(   
    'option',
    'redirect',
    window.location.href.replace(
        /\/[^\/]*$/,
        '/cors/result.html?%s'
    )
);

if (window.location.hostname === 'blueimp.github.io') {
    // Demo settings:
    $('#fileupload').fileupload('option', {
        url: '//jquery-file-upload.appspot.com/',
        // Enable image resizing, except for Android and Opera,
        // which actually support image resizing, but fail to
        // send Blob objects via XHR requests:
        disableImageResize: /Android(?!.*Chrome)|Opera/
            .test(window.navigator.userAgent),
        maxFileSize: 5000000,
        acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i
    });
    // Upload server status check for browsers with CORS support:
    if ($.support.cors) {
        $.ajax({
            url: '//jquery-file-upload.appspot.com/',
            type: 'HEAD'
        }).fail(function () {
            $('<div class="alert alert-danger"/>')
                .text('Upload server currently unavailable - ' +
                        new Date())
                .appendTo('#fileupload');
        });
    }
} else {
    // Load existing files:
    $('#fileupload').addClass('fileupload-processing');

    $.ajax({
        // Uncomment the following to send cross-domain cookies:
        //xhrFields: {withCredentials: true},

        url: $('#fileupload').fileupload('option', 'url'),
        data: "IDmission="+mission_id+"&IDanomalie="+anomalie_id,
        dataType: 'json',
        context: $('#fileupload')[0]
    }).always(function () {
        $(this).removeClass('fileupload-processing');
    }).done(function (result) {
        $(this).fileupload('option', 'done')
            .call(this, $.Event('done'), {result: result});
    });  
}

    }

})
});

And this is the index.php... I just want to get the variable and use it to make the request.