function checkInstantForm(theForm)
{
var why = "";



why += checkEmailBlank(theForm.Email.value);   //Must specify name
why += checkEmail(theForm.Email.value);   //Check for valid email addresss form	

       if (why != "") {
       alert(why);
       return false;
	}
return true;
}



function checkSupportForm(theForm)
{
var why = "";



why += checkName(theForm.Name.value);   //Must specify name
why += checkEmailPhone(theForm.Phone.value,theForm.Email.value);   //Must have phone or email	
why += checkEmail(theForm.Email.value);   //Check for valid email addresss form	
why += checkComments(theForm.Comments.value);   //Make sure comments are included	
why += checkPhone(theForm.Phone.value);   //Make sure comments are included
       if (why != "") {
       alert(why);
       return false;
	}
return true;
}

function checkQuoteForm(theForm)
{
var why = "";

why += checkName(theForm.Name.value);   //Must specify name
why += checkEmailPhone(theForm.Phone.value,theForm.Email.value);   //Must have phone or email	
why += checkEmail(theForm.Email.value);   //Check for valid email addresss form	
why += checkComments(theForm.Comments.value);   //Make sure comments are included	
why += checkPhone(theForm.Phone.value);   //Make sure comments are included
       if (why != "") {
       alert(why);
       return false;
	}
return true;

}


//VALIDATE Comments
function checkComments(strng)

// Comments MAY NOT BE BLANK
 
{

var error = "";
  if (strng == "") {
     error = "Please enter comments.\n";
  }
return error;	  
}



//VALIDATE NAME
function checkName(strng)

// NAME MAY NOT BE BLANK
 
{

var error = "";
  if (strng == "") {
     error = "Please enter your name.\n";
  }
return error;	  
}
//VALIDATE Email and Phone
function checkEmailPhone(phone,email)

// Both Email and Phone may not be blank
 
{
var error = "";

  if (email == "" && phone == "") {
     error = "Please enter your email and/or phone.\n";
  }


return error;	  
}

//Email address
function checkEmailBlank(strng)

// Email MAY NOT BE BLANK
 
{

var error = "";
  if (strng == "") {
     error = "Please enter your email address.\n";
  }
return error;	  
}
//VALIDATE Email and Phone
function checkEmailPhone(phone,email)

// Both Email and Phone may not be blank
 
{
var error = "";

  if (email == "" && phone == "") {
     error = "Please enter your email and/or phone.\n";
  }


return error;	  
}

// Check Email Format



function checkEmail (emailStr)

{
var error=""
if (emailStr == "")
return error;
else
{
/* 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. */
	error="Email address is incorrect"
	return error
}
var user=matchArray[1]
var domain=matchArray[2]

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

/* 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) {
	        error="Email destination IP address is invalid!"
		return error
	    }
    }
    return error
}

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

/* 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.
   error="The address must end in a three-letter domain, or two letter country."
   return error
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   error="Email address is missing a hostname."
   
   return error
}

// If we've gotten this far, everything's valid!
return error;

}}

//*********************Phone Validation ********************
// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone){
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function checkPhone(phone){
	var Phone=phone
	var error = ""
	if ((phone==null)||(phone=="")){
		
		return error;
	}
	if (checkInternationalPhone(phone)==false){
		error="Please Enter a Valid Phone Number"
		return error
	}
	return error
 }
//***********end of phone validation**********************