drag and drop does not work with embedded flash

drag and drop does not work with embedded flash


Not sure where my first message went. I have been playing around with
the drag and drop utilities but I found that if a draggable contains
an embedded flash object that it doesn't work. Is this normal or is my
there something wrong with my code?
Here is my code:
<head>
<title>New Block Page</title>
<script src="jquery.ui-1.5b4/jquery-1.2.4b.js"></script>
<script src="jquery.ui-1.5b4/ui.core.js"></script>
<script src="jquery.ui-1.5b4/ui.draggable.js"></script>
<script src="jquery.ui-1.5b4/ui.droppable.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".block").draggable({cancel: 'object,embed,:input,button',
helper: 'clone', containment: "#moduleArea"});
$(".drop").droppable({
    accept: ".block",
    activeClass: 'droppable-active',
    hoverClass: 'droppable-hover',
    drop: function(ev, ui) {
        $(ui.draggable).appendTo($(this));
    }
});
});
</script>
<style type="text/css">
    object, embed
    {
        z-index: 1;
    }
    .block {
z-index: 100;
background-color: black;
color: white;
padding: 0.4em;
}
.drop {
opacity: 0.7;
}
.droppable-active {
    opacity: 1.0;
}
.droppable-hover {
    outline: 1px dotted black;
}
</style>
<link rel="stylesheet" href="blueprint/screen.css" type="text/css"
media="screen, projection">
<link rel="stylesheet" href="blueprint/print.css" type="text/css"
media="print">
<!--[if IE]><link rel="stylesheet" href="css/blueprint/ie.css"
type="text/css" media="screen, projection"><![endif]-->
</head>
<body>
    <div class="container">
         <div class="span-24">
     Header
     </div>
        <div id="moduleArea" class="span-24">
     <div class="drop span-4">
     Left sidebar
                    <div class="block" id="mod1">
                        <object width="100" height="100"><param name="allowScriptAccess"
value="true"></param><param name="movie" value="http://www.youtube.com/
v/fvKhDiNME4E&hl=en"></param><param name="wmode" value="transparent"></
param><embed src="http://www.youtube.com/v/fvKhDiNME4E&hl=en"
type="application/x-shockwave-flash" wmode="transparent" width="100"
height="100" allowScriptAccess="true"></embed></object>
                    </div>
     </div>
     <div class="drop span-16">
     Main content
     </div>
     <div class="drop span-4 last">
     Right sidebar
                    <div class="block" id="mod2">
                        This is a block.
                    </div>
     </div>
        </div>
    </div>
</body>