private void bootClick(object sender, EventArgs e)
{
Button clickedButton = (Button)sender;
Group currentGroup = GroupDAO.GetGroupFromGroupId(Convert.ToInt32(Request.QueryString["ID"]));
currentGroup.Quit(UserDAO.GetUserFromUserId(Convert.ToInt32(clickedButton.ID)));
GroupDAO.UpdateGroup(currentGroup);
Response.Redirect("~/Groups/EditGroup.aspx?ID=" + Request.QueryString["ID"]);
}