var errors = [];

function AddRequiredField(inputEl, errEl)
{
  errors[errors.length] = [];
  errors[errors.length - 1][0] = inputEl;
  errors[errors.length - 1][1] = errEl;
}

function SendForm(formEl)
{
  var error = false;
  for (i=0;i <errors.length; i++)
  {
    if (document.getElementById(errors[i][0]).value == '')
    {
      error = true;
      document.getElementById(errors[i][1]).style.visibility = "visible";
    }
    else
    {
      document.getElementById(errors[i][1]).style.visibility = "hidden";
    }
  }
  
  if (error)
  {
    window.location.hash = "required";
    return false;
  }
  
  document.getElementById(formEl).submit();
  
  return false;
}