//////////////////////////////////////////////////////////////////////////////////////
////////////////Created by Shailesh Setha. For Ideavate Solutions Pvt. Ltd.///////////
///////////////////* V1.1.1: Er. Shailesh Setha (shailesh_setha@yahoo.com) *//////////
//////////////////////////////////////////////////////////////////////////////////////
//List of All the Javascript Functions, with their credentials(signature)and output.//
// All functions returns a string containing the error message with label.			//
//----------------------------------------------------------------------------------//
//Function to Check email address.													//
//function emailCheck (emailStr)													//
//----------------------------------------------------------------------------------//
//Funtion to trim the variable.														//
//function trim_str(variable)														//
//----------------------------------------------------------------------------------//
//Check min six characters, leading & trailing spaces not allowed.					//
//function check_char_len(field,form,len)											//
//----------------------------------------------------------------------------------//
//Get value of radio button checked, To check gender etc.							//
//function getRadios(what)															//
//----------------------------------------------------------------------------------//
//Check Two varaibles equal or not.													//
//function check_two(field1,field2,val1,val2)										//
//----------------------------------------------------------------------------------//
//Check not null (min one character), leading & trailing spaces not allowed.		//
//function check_null(field,form)													//
//----------------------------------------------------------------------------------//
//Check only characters between a range(min one character), spaces not allowed.     //
//function check_character_range(field,form,min,max)								//
//----------------------------------------------------------------------------------//
//Check only minimum characters (not null, min one character), spaces not allowed.	//
//function check_character_min(field,form,min)										//
//----------------------------------------------------------------------------------//
//Check only characters fixed number(not null), no leading & trailing spaces.		//
//function check_character_fix(field,form,min)										//
//-------------------------------------------------------------------------------//
//Check only digits between a range(not null, min one digit), spaces not allowed.//
//function check_digit_range(field,form,min,max)				 //
//----------------------------------------------------------------------------------//
//Check valid USA phone number(not null, 10 digits), no leading & trailing spaces.	//
//function check_phone(field,form)													//
//-------------------------------------------------------------------------------//
//Check only digits between a range(not null, min one digit), spaces not allowed.//
//function check_two_digit(field1,filed2,form1,form2)				 //
//////////////////////////////////////////////////////////////////////////////////////


//Function to Check email address. No of lines 132
function emailCheck(emailStr) {

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD.  1 means check it, 0 means don't. */

var checkTLD=1;

/* The following is the list of known TLDs that an e-mail address must end with. */

var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* 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="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
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. "shailesh setha"@hotmail.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. shail@[123.124.125.4] is a legal
e-mail address. NOTE: The square brackets are required. */

var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
var atom=validChars + '+';
var word="(" + atom + "|" + quotedUser + ")";
var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
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. */
return "Email address seems incorrect (check @ and .'s)\n";
}
var user=matchArray[1];
var domain=matchArray[2];

// Start by checking that only basic ASCII characters are in the strings (0-127).
for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
return "The username contains invalid characters.\n";
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
return "The domain name contains invalid characters.\n";
   }
}
if (user.match(userPat)==null) {
return "The username doesn't seem to be valid.\n";
}
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {
	for (var i=1;i<=4;i++) {
		if (IPArray[i]>255) {
			return "Destination IP address is invalid!\n";			
		   }
	}
return "";
}
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
	return "The domain name does not seem to be valid.\n";
   }
}
/* domain name seems valid, but now make sure that it ends in a
known top-level domain (like com, edu, gov) or a two-letter word,
representing country (uk, nl), and that there's a hostname preceding 
the domain or country. */

if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
return "The address must end in a well-known domain or two letter " + "country.\n";
}

if (len<2) {
return "This address is missing a hostname!\n"; 
}
return "";
}
//End of funtion to check email


//Funtion to trim the variable. Lines 18
function trim_str(variable){
	var icount=0;
	var var_len=variable.length;
	for (icount=0;icount<=var_len;icount++){
		if(variable.charAt(0)==' '){
			variable=variable.substring(1,variable.length);
		}
	}
	var_len=variable.length;
	for (icount=0;icount<=var_len;icount++){
		if (variable.charAt(variable.length-1)==' '){
			variable=variable.substring(0,variable.length-1);
		}
	}
	return variable;
}
//End of funtion to trim the variable

//Check min six characters, leading & trailing spaces not allowed.
function check_char_len(field,form,len) {
	var icount=0;
	var var_len=form.length;	

	//Remove leading space
	for (icount=0;icount<=var_len;icount++){
		if(form.charAt(0)==' '){
			form=form.substring(1,form.length);
		}
	}
	//Remove trailing space
	var_len=form.length;
	for (icount=0;icount<=var_len;icount++){
		if (form.charAt(form.length-1)==' '){
			form=form.substring(0,form.length-1);
		}
	}
	if(form.length < len){
		//alert(field+" must contain at least "+len+" characters.");
		return "The "+field+" must contain at least "+len+" characters.\n";		
	}else{
			return "";
	}
}

//Get radio button status
function getRadios(what){
j=what.length;
	for (i=0; i<j; i++){
		if(what[i].checked){
		var what_checked = what[i].value;
		}
	}
return what_checked;
}

//Check Two varaibles equal or not
function check_two(field1,field2,val1,val2) {
	//Remove spaces
	val1 = trim_str(val1);	
	val2 = trim_str(val2);	
	
	if (val1 == val2){					
		return "";
	}
	else{
		return "The "+ field1 +" must be same as "+ field2 +".\n";
	}
}

//Check not null (min one character), leading & trailing spaces not allowed.
function check_null(field,form) {
	var icount=0;
	var var_len=form.length;
	//Remove spaces
	form = trim_str(form);	
	if(form.length < 1){
		//alert(field+" must contain at least "+len+" characters.");
		return "The "+field+" can not be null.\n";		
	}else{
			return "";
	}
}

//Check only characters between a range(not null, min one character), leading & trailing spaces not allowed.
function check_character_range(field,form,min,max) {
	var i=0;
	var var_len=form.length;
	if(min <= var_len && var_len <= max){	
		for (i=0; i<var_len; i++) {
			if (form.charCodeAt(i)>127) {
				return "The "+ field +" must contain valid characters.\n";
			}
		}
		return "";
	}else{
		return "The "+field+" must contain "+ min +" - "+ max +" valid characters.\n";
	}
}

//Check only minimum characters (not null, min one character), leading & trailing spaces not allowed.
function check_character_min(field,form,min) {
	var i=0;
	var var_len=form.length;
	if(min <= var_len){	
		for (i=0; i<var_len; i++) {
			if (form.charCodeAt(i)>127) {
				return "The "+ field +" must contain valid characters.\n";
			}
		}
		return "";
	}else{
		return "The "+field+" must contain "+ min +" valid characters.\n";
	}	
}

//Check only characters fixed number(not null), leading & trailing spaces not allowed.
function check_character_fix(field,form,min) {
	var i=0;
	var var_len=form.length;
	if(min == var_len){	
		for (i=0; i<var_len; i++) {
			if (form.charCodeAt(i)>127) {
				return "The "+ field +" must contain valid characters.\n";
			}
		}
		return "";
	}else{
		return "The "+field+" must contain "+ min +" valid characters.\n";
	}
}

//Function to Check email address. calls function emailCheck
function check_email (emailStr) {
	return emailCheck(emailStr);
}

//Check only digits between a range(not null, min one digit), leading & trailing spaces not allowed.
function check_digit_range(field,form,min,max) {
	var i=0;
	var var_len=form.length;
	var val_="";
	if(min <= var_len && var_len <= max){
		for (i=0; i<var_len; i++) {
			val_+=form.charCodeAt(i);		
			if (form.charCodeAt(i) < 46 || form.charCodeAt(i) > 58) {
				return "The "+ field +" must contain valid digits.\n";
			}			
		}
		return "";
	}else{
		return "The "+field+" must contain "+ min +" - "+ max +" valid digits.\n";
	}	
}

//Check digits, form1 must be equal or greater then form2  .
function check_two_digit(field1,field2,form1,form2) {
        var form1=trim_str(form1);
        var form2=trim_str(form2);
        if(form1 >= form2){
                return "";
        }else{
		return "The '"+ field1 +"' must be greater than or equal to '"+field2+"'.\n";
        }
}

//Check valid USA phone number(not null, 10 digits), leading & trailing spaces not allowed.
function check_phone(field,form) {
	var i=0;
	var var_len=form.length;
	var val_="";
	if(var_len == 12){
		for (i=0; i<var_len; i++) {
			val_+=form.charCodeAt(i);
			if(i != 3 && i!= 7){
			if (form.charCodeAt(i) < 46 || form.charCodeAt(i) > 58) {			
					return "The "+ field +" format is not valid.\n";				
			}
			}
		}
		if (form.charCodeAt(3) != 45 || form.charCodeAt(7) != 45) {
			return "The "+ field +" format is not valid.\n";
		}
		return "";
	}else{
		return "The "+field+" must contain 10 digits.\n";
	}	
}

//Check only digit(not null, min one digit), leading & trailing spaces not allowed.
function check_digit(field,form,min) {
	var i=0;
	var var_len=form.length;
	var val_="";
	if(min == var_len){
		for (i=0; i<var_len; i++) {
			val_+=form.charCodeAt(i);
			if (form.charCodeAt(i) < 46 || form.charCodeAt(i) > 58) {
				return "The "+ field +" must contain valid digits.\n";
			}			
		}
		return "";
	}else{
		return "The "+field+" must contain "+ min +" valid digits.\n";
	}	
}