jquery check internet connection

$(document).ready(function() {
    keepSessionAlive();
});






  var keepAliveTimeout = 1000 * 10;


function keepSessionAlive()
{
    $.ajax(
    {
        type: 'GET',
        url: 'http://192.168.10.3',
        success: function(data)
        {
            alert('Success');


            setTimeout(function()
            {
                keepSessionAlive();
            }, keepAliveTimeout);
        },
        error: function(XMLHttpRequest, textStatus, errorThrown)
        {
            alert('Failure');


            setTimeout(function()
            {
                keepSessionAlive();
            }, keepAliveTimeout);
        }
    });
}