Ravaelles

/**
 * Displays overlay with "Please wait" text. Based on bootstrap modal. Contains animated progress bar.
 */
function showPleaseWait() {    
    if (document.querySelector("#pleaseWaitDialog") == null) {
        var modalLoading = '<div class="modal" id="pleaseWaitDialog" data-backdrop="static" data-keyboard="false" role="dialog">\
            <div class="modal-dialog">\
                <div class="modal-content">\
                    <div class="modal-header">\
                        <h4 class="modal-title">Please wait...</h4>\