how to get values from asp to flash file Action script 3

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ASP.NET

Flash

Please provide me a solution to get values from asp to flash file Action script 3.

I had a text box and flash object .So i need to pass the textbox value to flash file action script

 <asp:TextBox ID="txt_code" runat="server"  Width="168px"  BackColor="#CCCCCC"></asp:TextBox>

<td rowspan="4">
                 <object style="height: 210px; width: 480px; float: left;">
		<param name="movie" value="billa.swf">
		<embed src="billa.swf" width="480" height="210"></embed>
	</object>
                        </td>