function clearField(objField)
{
	if (objField.name == 'emailsignup' )
	{
		if (objField.value == 'ENTER EMAIL')
		{
			objField.value = '';
		}
	}
}

function setField(objField)
{
	if (objField.name == 'emailsignup' )
	{
		if (objField.value == '')
		{
			objField.value = 'ENTER EMAIL';
		}
	}
}


function validate_required(field,alerttxt)
{
  with (field)
  {
  if (value==null||value=="")
    {
    alert(alerttxt);return false;
    }
  else
    {
    return true;
    }
  }
}

function validate_form(thisform)
{
	with (thisform)
  {
		if (validate_required(emailsignup,"Please enter an email address")==false)
		{
			emailsignup.focus();
			return false;
		}

		if (emailsignup.value=='ENTER EMAIL')
		{ 
      alert('Please enter an email address');
			return false; 
		}
	}
}