jquery mobile alter、confirm重寫，使用popup

function confirmDialog(text, callback) {var popupDialogId = 'popupDialog';$('<div data-role="popup" id="' + popupDialogId + '" data-confirmed="no" data-transition="pop" data-overlay-theme="b" data-theme="b" data-dismissible="false" style="max-width:500px;"> \                    <div data-role="header" data-theme="a">\                        <h1>Question</h1>\                    </div>\                    <div role="main" class="ui-content">\                        <h3 class="ui-title">' + text + '</h3>\                        <a href="#" class="ui-btn ui-corner-all ui-shadow ui-btn-inline ui-btn-b optionConfirm" data-rel="back">Yes</a>\                        <a href="#" class="ui-btn ui-corner-all ui-shadow ui-btn-inline ui-btn-b optionCancel" data-rel="back" data-transition="flow">No</a>\                    </div>\                </div>')    .appendTo($.mobile.pageContainer);var popupDialogObj = $('#' + popupDialogId);popupDialogObj.trigger('create');popupDialogObj.popup({    afterclose: function (event, ui) {        popupDialogObj.find(".optionConfirm").first().off('click');        var isConfirmed = popupDialogObj.attr('data-confirmed') === 'yes' ? true : false;        $(event.target).remove();        if (isConfirmed && callback) {            callback();        }    }});popupDialogObj.popup('open');popupDialogObj.find(".optionConfirm").first().on('click', function () {    popupDialogObj.attr('data-confirmed', 'yes');});}