Cannot read property 'top' of undefined？？
<script type="text/javascript" src="js/jquery-1.10.0.js"></script>
<script type="text/javascript">
$("#search-input").bind("keyup",function(){
$("#search-suggest").show().css({
"position":"absolute",
"top":$("#search-form").offset().top,
"left":$("#search-form").offset().left
});
})
</script>
top总是报错？？
