Load error image in case of 404
Using .error Alternatively use .bind('error abort', as suggested by ShankarSangoli
HTML
<img id="mainImage" src="http://sina16.book.cnhintl.com/images/wait.gif" />
JavaScript
$(document).ready(function() {
$("#mainImage").error(function () {
$(this).attr("src", "http://www.nmh.ie/iopen24/images/content_images/other/warning.jpg");
});
$("#mainImage").attr("src","possibly_missing_image.jpg");
});