How to select a radio button in internet explorer

[sososm]

Hy experts

I need a little help here. Can anybody tell me how to select
a radio button from another program knowing the name,id or text of the radio button.
I want to automate internet explorer by checking the "First Name" radio button then pressing the "Send" button.

This is the code I'm using to get the focus to internet explorer:

using System;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
 
public class getWindow
{
  [DllImport("user32.dll")]
  public static extern IntPtr FindWindow(string IpClassName, string IpWindowName);
 
  [DllImport("user32.dll")]
  public static extern int SetForegroundWindow(IntPtr hWnd);
 
  public static void Main(string[] args)
  {
    IntPtr iHandle = FindWindow(null," Details - Windows Internet Explorer");
    SetForegroundWindow(iHandle);
  }
}
 

Any help would be appreciated.
Thank you in advance.

[HaLo2FrEeEk]

I'm not sure exactly how to go about doing this, but a good start might be figuring out what messages IE takes and see if you can send a message to the address bar, then send some javascript to check the radio button.