Jquery Ajax触发了两次

Question

由于某些原因，该功能被触发两次。如果你能帮助我改进代码（是一个noobz），我将非常感激。

主要的调用功能是： get_range_entries

一旦回调返回状态，它就会显示模态框，但不知怎的，它会转到下一行代码，因此它阻止我关闭模态窗口。

function load_XMLDoc(dname, callback) {
    $.ajax({
        cache: false,
        type: 'GET',
        dataType: "xml",
        url: dname + '&date=' + new Date().getTime(),
        success: function(result) {
            if(typeof callback === "function") {
                callback(result)
            }
        }
     })
}


function get_range_entries(view_name, startkey, universal_id, column, callback) {
    //unid = universal id
    //column = column number to compare
    //this is for uncategorized views only

    var url;
    var status = false;

    url = view_name + '?ReadViewEntries&ResortAscending=' + column + '&StartKey=' + startkey + '&UntilKey=' + startkey + 'Z&ExpandView';
    load_XMLDoc(url, function(result) {
        viewentries = result.getElementsByTagName("viewentries");
        entries = result.getElementsByTagName("viewentry");
        range_entries = viewentries[0].getAttribute('rangeentries');

        if (range_entries == 0) {
            status = false;
        }
        else {          
            entries = result.getElementsByTagName("viewentry");
            columns  = entries[0].getElementsByTagName("entrydata");

            if (entries[0].getAttribute('unid')) {
                unid = entries[0].getAttribute('unid');
            }

            if (unid == universal_id)
                status = false;
            else {
                colvalue = columns.item(column).childNodes[1].firstChild.nodeValue;
                status = (colvalue.toLowerCase() == startkey.toLowerCase());
            }
        }
        alert(1); ------------------> just using this to check if its being triggered twice
        callback(status);
    })
}



function display_message_string(message_title, message_string, hide_primary) {  
    $('#modal-confirm').find('.modal-title').html(message_title);
    $('#modal-confirm').find('.modal-body').html(message_string);

    if (hide_primary)
        $('#modal-confirm').find('.btn-primary').hide();
    else
        $('#modal-confirm').find('.btn-primary').show();

    $('#modal-confirm').modal('show');      
}



get_range_entries(view_name, startkey, unid, 1, function(status) {
        if (status) {
            display_message_string("DUPLICATE ENTRIES ENCOUNTERED", "The GENERATOR NAME you are trying to save already exists in the Database ... Please try again", true);
            return false; ----> added this just to prevent it from triggering twice but it doesn't seem to work
        }
})

.....保存表单的下一行代码