CODE EXAMPLE FOR JAVASCRIPT

how to replace img url using jquery on mobile screen

$(window).resize(function(e){
   if($(window).width() < 568) {
   console.log($(window).width());
    $("#crewimage").each(function() {
      $(this).attr("src", "http://s3.amazonaws.com/libapps/customers/1633/images/icon_52143.png");
                });
            } else if ($(window).width() >= 568) {
                $("#crewimage").each(function() {
                $(this).attr("src","https://ithemes.com/wp-content/uploads/2012/07/mobile300.png");
                });                        
    }         
});