function messageBox(message, callback, options) {
	var defaults = {
		modal		: true,
		resizable	: false,
		buttons		: {
			Ok: function() {
				$(this).dialog('destroy');
				if (callback) {
					callback();
				}
			}
		},
		show		: 'fade',
		hide		: 'fade',
		minHeight	: 50,
		dialogClass	: 'modal-shadow'
	}
	
	var dlog = document.createElement('div');
	var dlogContent = document.createElement('div');
	$(dlog).append(dlogContent);
	$('body').append(dlog);
	// set message
	$(dlogContent).html(message);
	// init dialog
	$(dlog).dialog($.extend({}, defaults, options));
}