var CusType_selection="";
var numShips_selection="";

function FrontPage_Form1_Validator(theForm)
{

  if (theForm.Company.value == "")
  {
    alert("Please enter a value for the \"Company Name\" field.");
    theForm.Company.focus();
    return (false);
  }

  if (theForm.Company.value.length < 5)
  {
    alert("Please enter at least 5 characters in the \"Company Name\" field.");
    theForm.Company.focus();
    return (false);
  }
  
  if (CusType_selection=="")
  {	alert("\nPlease indicate whether you are a vessel owner or manager.");
	return (false);  }
  else 
  {	theForm.CustomerType.value = CusType_selection;  }
  
  if (numShips_selection=="")
  {	alert("\nPlease indicate how many vessels are in your fleet.");
	return (false); }
  else 
  {	theForm.NumberofShips.value = numShips_selection; }

  if (theForm.Name.value == "")
  {
    alert("Please enter a value for the \"Primary Contact\" field.");
    theForm.Name.focus();
    return (false);
  }

  if (theForm.Name.value.length < 1)
  {
    alert("Please enter at least 1 characters in the \"Primary Contact\" field.");
    theForm.Name.focus();
    return (false);
  }

  if (theForm.Name.value.length > 30)
  {
    alert("Please enter at most 30 characters in the \"Primary Contact\" field.");
    theForm.Name.focus();
    return (false);
  }
  
  if (theForm.CompanyEmail.value.length < 1)
  {
    alert("Please enter a valid email address in the \"Your Email Address\" field.");
    theForm.CompanyEmail.focus();
    return (false);
  }
  
  if (!emailCheck(theForm.CompanyEmail.value))
  {
	theForm.CompanyEmail.focus();
	return (false);
  }
  
  if (theForm.password.value == "")
  {
    alert("Please enter a value for the \"Password\" field.");
    theForm.password.focus();
    return (false);
  }

  if (theForm.password.value.length < 5)
  {
    alert("Please enter at least 5 characters in the \"Password\" field.");
    theForm.password.focus();
    return (false);
  }

  if (theForm.password.value.length > 20)
  {
    alert("Please enter at most 20 characters in the \"Password\" field.");
    theForm.password.focus();
    return (false);
  }

  if (theForm.confirmpassword.value == "")
  {
    alert("Please enter a value for the \"Confirm Password\" field.");
    theForm.confirmpassword.focus();
    return (false);
  }

  if (theForm.confirmpassword.value.length < 5)
  {
    alert("Please enter at least 5 characters in the \"Confirm Password\" field.");
    theForm.confirmpassword.focus();
    return (false);
  }

  if (theForm.confirmpassword.value.length > 20)
  {
    alert("Please enter at most 20 characters in the \"Confirm Password\" field.");
    theForm.confirmpassword.focus();
    return (false);
  }
    
  if (theForm.password.value !== theForm.confirmpassword.value)
  {
    alert("Please make sure the password matches the \"Confirm Password\" field.");
    theForm.confirmpassword.focus();
    return (false);
  }
  
  return (true);
}

function emailCheck (emailStr) {
/* The following pattern is used to check if the entered e-mail address
   fits the user@domain format.  It also is used to separate the username
   from the domain. */
var emailPat=/^(.+)@(.+)$/
/* The following string represents the pattern for matching all special
   characters.  We don't want to allow special characters in the address. 
   These characters include ( ) < > @ , ; : \ " . [ ]    */
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
/* The following string represents the range of characters allowed in a 
   username or domainname.  It really states which chars aren't allowed. */
var validChars="\[^\\s" + specialChars + "\]"
/* The following pattern applies if the "user" is a quoted string (in
   which case, there are no rules about which characters are allowed
   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")"
/* The following pattern applies for domains that are IP addresses,
   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
   e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
/* The following string represents an atom (basically a series of
   non-special characters.) */
var atom=validChars + '+'
/* The following string represents one word in the typical username.
   For example, in john.doe@somewhere.com, john and doe are words.
   Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")"
// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
/* The following pattern describes the structure of a normal symbolic
   domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


/* Finally, let's start trying to figure out if the supplied address is
   valid. */

/* Begin with the coarse pattern to simply break up user@domain into
   different pieces that are easy to analyze. */
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
  /* Too many/few @'s or something; basically, this address doesn't
     even fit the general mould of a valid e-mail address. */
	alert("Email address seems incorrect (check @ and .'s)")
	return false
}
var user=matchArray[1]
var domain=matchArray[2]

// See if "user" is valid 
if (user.match(userPat)==null) {
    // user is not valid
    alert("The username doesn't seem to be valid.")
    return false
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("Destination IP address is invalid!")
		return false
	    }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
	alert("The email address domain name doesn't seem to be valid.")
    return false
}

/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */

/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
   alert("The email address must end in a three-letter domain, or two letter country.")
   return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="This email address is missing a hostname!"
   alert(errStr)
   return false
}

// If we've gotten this far, everything's valid!
return true
}


function ValidateVesselForm(theForm)
{
  
  if (theForm.vessel.value == "")
  {
    alert("Please enter a value for the \"Vessel Name\" field.");
    theForm.vessel.focus();
    return (false);
  }

  if (theForm.vessel.value.length < 5)
  {
    alert("Please enter at least 5 characters in the \"Vessel Name\" field.");
    theForm.vessel.focus();
    return (false);
  }

  if (theForm.IMN.value == "")
  {
    alert("Please enter the Vessel's IMN in the \"Imarsat Number\" field.");
    theForm.IMN.focus();
    return (false);
  }

  if (theForm.IMN.value.length !== 9)
  {
    alert("The Inmarsat Member Number should be a 9-digit number.");
    theForm.IMN.focus();
    return (false);
  }

  if (isNaN(theForm.IMN.value))
  {
    alert("The Inmarsat Member Number should be a 9-digit number.");
    theForm.IMN.focus();
    return (false);
  }
  
  if (theForm.VesselEmail.value.length < 1)
  {
    alert("Please enter a valid email address in the \"Vessel Email Address\" field.");
    theForm.VesselEmail.focus();
    return (false);
  }
  
  if (!emailCheck(theForm.VesselEmail.value))
  {
	theForm.VesselEmail.focus();
	return (false);
  }
  
  if (isNaN(theForm.speed.value))
  {
    alert("The vessel speed value should be a number from 0 to 30.");
    theForm.speed.focus();
    return (false);
  }
  
  if ((theForm.speed.value < 0) || (theForm.speed.value > 30))
  {
    alert("The vessel speed value should be a number from 0 to 30.");
    theForm.speed.focus();
    return (false);
  }
  
  if (isNaN(theForm.course.value))
  {
    alert("The vessel course value should be a number from 0 to 359.");
    theForm.course.focus();
    return (false);
  }  
  
  if ((theForm.course.value < 0) || (theForm.course.value > 359))
  {
    alert("The vessel course value should be a number from 0 to 359.");
    theForm.course.focus();
    return (false);
  }
  
  return (true);
}

function Done()
{
document.mapper.Finished.value = 'Finished';
document.mapper.submit()
}