jquery Datepicker can´t select a date

Sorry i posted my Problem Yesterday in the area Themes. Unfortunately no one could help me so i want to try it here.

I want to use the Datepicker in a Template for my Custom Post Type. There are 3 Textfields to filter the Query and the Datepicker should be one of them. If i click in the Textfield the Datepicker pop up but i can’t select a Date!! I searched yesterday for hours but i cant find a solution. I use a Child-Them from Catch-Box and this function is in my functions.php

'function meine_scripts() {
    wp_enqueue_script('meinscript', dirname(get_bloginfo('stylesheet_url')) . '/js/meinscript.js', array('jquery') );
    wp_enqueue_script('jquery');
    wp_enqueue_script('jquery-ui-core');
    wp_enqueue_script('jquery-ui-datepicker');
    wp_enqueue_style('jquery.ui.theme', dirname(get_bloginfo('stylesheet_url')) . '/js/jquery-ui-1.10.4.custom.css');
}
add_action( 'init', 'meine_scripts' );

And so looks the file meinscript.js

jQuery(document).ready(function() {
    jQuery('.meindatum').datepicker({
        monthNames: ['Januar','Februar','Maerz','April','Mai','Juni',
                     'Juli','August','September','Oktober','November','Dezember'],
                     monthNamesShort: ['Jan','Feb','Mär','Apr','Mai','Jun',
                     'Jul','Aug','Sep','Okt','Nov','Dez'],
                     dayNames: ['Sonntag','Montag','Dienstag','Mittwoch','Donnerstag','Freitag','Samstag'],
                     dayNamesShort: ['So','Mo','Di','Mi','Do','Fr','Sa'],
                     dayNamesMin: ['So','Mo','Di','Mi','Do','Fr','Sa'],
        //dateFormat : "dd.mm.yyyy",
        firstDay : 1
    });
});

I hope you can help me.

Thank’s
Ati74