Play Video On My Website

<ajaxtoolkit:modalpopupextender ID="modal1"
           TargetControlID="hiddenTargetControlForModalPopup" PopupControlID="Panel1" CancelControlID="Button1"
           runat="server" BehaviorID="bhvModel1" RepositionMode="RepositionOnWindowScroll"></ajaxtoolkit:modalpopupextender>
   <asp:Panel ID="Panel1" runat="server" Height="400px" Width="497px"
       CssClass="roundedPanel">
   <div class="style59" style="text-align: right">
   <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Close"
           BackColor="#FFFFCC" BorderStyle="None"  Width="63px" /></div>

   <embed id='embed1' runat="server" name='mediaPlayer' type='application/x-mplayer2' pluginspage='http://microsoft.com/windows/mediaplayer/en/download/'  displaysize='4' autosize='-1' bgcolor='darkblue' showcontrols='true' showtracker='-1' showdisplay='0' showstatusbar='-1' videoborder3d='-1' width='500' height='405'  designtimesp='5311' loop='false'>


  </embed>

protected void Button1_Click(object sender, EventArgs e)
   {
       embed1.Attributes.Add("src", "");
       embed1.Attributes.Add("filename", "");

       embed1.Disabled = true;
       embed1.Dispose();
       this.modal1.Hide();
       this.Panel1.Dispose();

   }