How to completely Remove a control from the Page?

#div_project_details

{

    position: absolute;

    top: -9999px;

    left: -9999px;

}

</style>



<div id="div_project_details" style="width:100%;height:400px;border-color:orange;">

    <asp:TextBox ID="txt_project_name" runat="server"></asp:TextBox>

    <asp:TextBox ID="txt_budget" runat="server"></asp:TextBox>

	<asp:TextBox ID="txt_project_start_date" runat="server"></asp:TextBox>

	<asp:TextBox ID="txt_project_end_date" runat="server"></asp:TextBox>

</div>