Date Picker Year Range

<?php
/*
This snippet changes datepicker year range for all front-end date pickers.

For installation instructions, please visit http://wp-events-plugin.com/tutorials/how-to-safely-add-php-code-to-wordpress/
*/
function my_em_datepicker_vals(){
    ?>
    <script type="text/javascript">
        jQuery(document).bind('em_datepicker', function( e, em_datepicker ){
            em_datepicker.yearRange = '-100:+10';
        });
    </script>
    <?php
}
add_action('wp_head','my_em_datepicker_vals',1000);