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_required(field,alerttxt)

{

with (field)

  {

  if (value==null||value==""||value=="your name"||value=="email address")

    {

    alert(alerttxt);return false;

    }

  else

    {

    return true;

    }

  }

}



function validate_form(thisform)

{

with (thisform)

  {

	if (validate_required(name,"Please enter your name!")==false)

  {name.focus();return false;}  

  if (validate_email(email,"Please enter your email!")==false)

  {email.focus();return false;}

	if (validate_required(message,"Please enter your message!")==false)

  {message.focus();return false;}  

  }

}