function randomKey(length) {
    var text = '';
    var possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';

    for( var i=0; i < length; i++ ) {
        text += possible.charAt(Math.floor(Math.random() * possible.length));
    }

    return text;
}
function escapeRegExp(str) {
    return str.replace(/^\/|\/$/g, '');
}
$(document).ready(function () {
    $.urlParam=function(name){var results=new RegExp("[\\?&]"+name+"=([^&#]*)").exec(decodeURIComponent(window.location.href));if(results==null){return null}else{return results[1]||0}};function getPageName(url){var index=url.lastIndexOf("/")+1;var filenameWithExtension=url.substr(index);var filename=filenameWithExtension.split(".")[0];return filename}
    function centerModal(element) {
        var modal = (element.length > 0) ? element : $('.modal:visible');
        var clone = modal.clone().css('display', 'block').appendTo('body');
        var top = Math.round((clone.height() - clone.find('.modal-content').height()) / 3);
        clone.remove();
        modal.find('div.modal-content').css('margin-top', top);
    }
    $('body').on('show.bs.modal', '.modal', function() {
        centerModal($(this));
    });
    $(window).on('resize', centerModal);
});