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


function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate(thisform)
{
//alert("value:"+thisform.fname.value);
with (thisform)
  {
  if (validate_required(fname,"First Name field is missing.")==false)
  {fname.focus();return false;}  
  
   if (validate_required(lname,"Last Name field is missing.")==false)
  {lname.focus();return false;}  
  
  if (validate_email(email,"Invalid e-mail address!")==false)
    {email.focus();return false;}

		
  if (validate_required(message,"Message field is empty")==false)
  {message.focus();return false;}		
  	
  }
  sendit(thisform.fname.value,thisform.lname.value,thisform.email.value,thisform.phone.value,thisform.message.value);
  return false;
  
}