function ccwswallett_credits(region) {
  InjectHtmlInRegionByUrl("/system/wallet/AjaxSrv/ContentManager.aspx?Content=credits", region);
}

function ccwswallet_add_credits(amount) {
  var s;
  s = GetContentByUrl("/system/wallet/AjaxSrv/ContentManager.aspx?content=add&amount=" + amount);
  if (s == "OK") {
    ccwswallett_credits('user_credits_indicator');
  } else {
    alert(s);
  }
}

function ccwswallet_subtract_credits(amount) {
  var s;
  s = GetContentByUrl("/system/wallet/AjaxSrv/ContentManager.aspx?content=subtract&amount=" + amount);
  if (s == "OK") {
    ccwswallett_credits('user_credits_indicator');
  } else {
    alert(s);
  }
}