<script type="text/javascript" language="javascript">
    // DETECT DRAG`n DROP TOOLS
    function dragndropMode() {
        //alert('drag here');
        if (window.FileReader && Modernizr.draganddrop)
            return true;
        return false;
    }
</script>

<uc1:UC_MultipleFileUpload ID="UC_MultipleFileUpload1" runat="server" visible="CHANGE WITH JAVASCRIPT" />