// JavaScript Document
/**
 * DHTML phone number validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

// 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));
}

function emailCheck (emailStr) {

var checkTLD=1;
var knownDomsPat=/^(com|COM|net|NET|org|ORG|edu|EDU|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
var emailPat=/^(.+)@(.+)$/;
var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
var validChars="\[^\\s" + specialChars + "\]";
var quotedUser="(\"[^\"]*\")";
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) {
alert("Email address seems incorrect (check @ and .'s)");
return false;
}
var user=matchArray[1];
var domain=matchArray[2];
for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
alert("Ths username contains invalid characters.");
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("Ths domain name contains invalid characters.");
return false;
   }
}
if (user.match(userPat)==null) {
alert("The username doesn't seem to be valid.");
return false;
}
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
alert("Destination IP address is invalid!");
return false;
   }
}
return true;
}

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) {
alert("The domain name does not seem to be valid.");
return false;
   }
}

/* 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) {
alert("The address must end in a well-known domain or two letter " + "country.");
return false;
}

// Make sure there's a host name preceding the domain.

if (len<2) {
alert("This address is missing a hostname!");
return false;
}

// If we've gotten this far, everything's valid!
return true;
}
function trim(string){
	return ltrim(rtrim(string));
} 
function rtrim(string){
	return string.replace(/\s$/,"");
}
function ltrim(string){
	return string.replace(/^\s*/,"");
}
function validateEmail(email){
	var RegExEmail=/^\w+@\w+\.\w+/
	return RegExEmail.test(email);
}
function chkin()
{
	 if(document.form1.name.value=="")
		{
			alert("  Name cannot be Blank");
            document.form1.name.focus();
			return false;
		}
	if(trim(document.form1.name.value)!=document.form1.name.value)
		{
			alert("  Name should not be start/end with space");
			document.form1.name.focus();
			return false;
		}
		if(document.form1.phone.value=="")
		{
			alert("  Phone cannot be Blank");
            document.form1.phone.focus();
			return false;
		}	
		if (checkInternationalPhone(document.form1.phone.value)==false){
			alert("Please Enter a Valid Phone Number")
			document.form1.phone.value=""
			document.form1.phone.focus()
			return false
		}
		if(trim(document.form1.phone.value)!=document.form1.phone.value)
		{
			alert("  Phone should not be start/end with space");
			document.form1.phone.focus();
			return false;
		}
		 if(document.form1.email.value=="")
		{
			alert(" Email cannot be Blank");
            document.form1.email.focus();
			return false;
	   }
		 if(emailCheck(document.form1.email.value)==false){
			return false;
		 }
		 if(document.form1.zip.value=="")
		{
			alert("  Zip cannot be Blank");
            document.form1.zip.focus();
			return false;
		}
	if(trim(document.form1.zip.value)!=document.form1.zip.value)
		{
			alert("  Zip should not be start/end with space");
			document.form1.zip.focus();
			return false;
		}
		if(document.form1.service.value=="")
		{
			alert(" Please select a service");
            document.form1.service.focus();
			return false;
		}
}