<img id="main" src="missing-image.jpg" />

<script type="text/javascript">

    $(function () {
        $("#main").error(function () {
            $("#main").attr("src", "generic.jpg");
        });
    });

</script>

<img id="mainImage" src="placeholder.jpg" />

<script type="text/javascript">
$(document).ready(function() {
  $("#mainImage").error(function () {
    $(this).attr("src", "generic.jpg");
  });
  $("#mainImage").attr("src","possibly_missing_image.jpg");
});

</script>

$(function () {
        $("#main").bind('error abort', function () {
            $(this).attr("src", "generic.jpg");
        });
    });

$(document).ready(function() {
  $("#mainImage").error(function () {
    $(this).attr("src", "generic.jpg");
  })
  .each(function() {
  $(this).attr("src",$(this).attr("src"));
});