i am facing some difficulty with getting the height of the dynamically loaded div image.. sometimes , it gives the correct height but sometimes it gives zero .. here is my code $.ajax({ type: "POST", url: "images.php", data: dataStr, cache: false, async : false, success: function(data) { $('.up').empty(); $(".up").html(data); alert($(".loadimg").height()); } }); here is what i am appending echo '<div class="imagediv"> <img src="default.jpg" class="loadimg" /> </div> ';