Answers for "refreshing div using jquery"

ubuntu install composer

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php -r "if (hash_file('sha384', 'composer-setup.php') === '8a6138e2a05a8c28539c9f0fb361159823655d7ad2deecb371b04a83966c61223adc522b0189079e3e9e277cd72b8897') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php
php -r "unlink('composer-setup.php');"

refresh div jquery

$("#mydiv").load(location.href + " #mydiv");

//this is actualy not so nice but it does the job.

refresh a page in jquery

$('#something').click(function() {
    location.reload();
});