<div class="con_body" id="ccc"> <img src="images/case.jpg" /></div>
<script language="javascript">
var imgObj = $("#ccc").find("img");
$("#ccc").find("img").load(function () {
if (imgObj.length > 0) {
for (var i = 0; i < imgObj.length; i++) {
if (imgObj[i].width > 650) {
imgObj[i].height = 650 * imgObj[i].height / imgObj[i].width;
imgObj[i].width = 650;
}
}
}
});
</script>