VS 2008 Getting variables from hidden html elements

Hi all,

Have the following ASP/Java that returns me some data from an ocx control but I'm having problems actually using the data:

<script runat="server">

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Response.Write(House.Value)
End Sub

</script>

<script type="text/javascript">
function gethousecust()
{
IPCMF.Open("ipcmftest");
document.getElementById("House").value = IPCMF.ReadNV( "HOUSE");
}
</script>

<OBJECT id=IPCMF style="LEFT: 0px; TOP: 0px" codeBase=IPC_MF.ocx classid="clsid:363D15B5-CFF8-443E-8203-5FC5A856C489">
<PARAM NAME="_Version" VALUE="65536">
<PARAM NAME="_ExtentX" VALUE="2646">
<PARAM NAME="_ExtentY" VALUE="1323">
<PARAM NAME="_StockProps" VALUE="0">
</OBJECT>

<body>
<form id="form1" runat="server">
<div>
<input id="House" type="hidden" runat="server" />
<asp:Button ID="Button1" runat="server" OnClientClick="gethousecust()" Text="Button" OnClick="Button1_Click" />
</div>
</form>
</body>

...when I click I get the data that IPCMF.ocx fetched for me and it's already in an asp variable.

Question is how do I get it to run the Java function without clicking the button and put those variables in a format that a data grid view can use?

Thanks!
Monty