//change image src with jquery
$("#myImageID").attr("src","images/my_other_image.png");
//change image src plain javascript
document.getElementById('myImageID').src="images/my_other_image.png";
$(window).resize(function(e){
if($(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");
});
}
});