/**
 * 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 trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
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){
var bracket=3
strPhone=trim(strPhone)
if(strPhone.indexOf("+")>1) return false
if(strPhone.indexOf("-")!=-1)bracket=bracket+1
if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)return false
var brchr=strPhone.indexOf("(")
if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")return false
if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}
//valitation
function validate()
{
// NAME
	var l=document.applynow.firstname.value.length;
	var m=document.applynow.firstname.value;
	var p=document.applynow.firstname;
	for(var i=0; i<l-1; i++)
		{
		n=m.substring(i, i+2);
		if(n=="  " || n==".." || n=="''")
			{
			alert("Invalid name, Please re-enter")
			p.select();
			return false;
			}
		}
		
	if(m=='') {
		alert("Enter your First Name");
		p.select();
		return false;
	}       
	
	for (var i=0; i<l; i++)
		{
		var q=m.substring(i, i + 1);
		if (((q < "a" || "z" < q) && (q < "A" || "Z" < q)) && q != ' ' && q!='.' && q!="'") {
			alert("\nThe Name field only accepts letters & spaces.\n\nPlease re-enter your Name.");
			p.select();
			return false;
		}
	}


// NAME
	var l=document.applynow.lastname.value.length;
	var m=document.applynow.lastname.value;
	var p=document.applynow.lastname;
	for(var i=0; i<l-1; i++)
		{
		n=m.substring(i, i+2);
		if(n=="  " || n==".." || n=="''")
			{
			alert("Invalid name, Please re-enter")
			p.select();
			return false;
			}
		}
		
	if(m=='') {
		alert("Enter your Last Name");
		p.select();
		return false;
	}       
	
	for (var i=0; i<l; i++)
		{
		var q=m.substring(i, i + 1);
		if (((q < "a" || "z" < q) && (q < "A" || "Z" < q)) && q != ' ' && q!='.' && q!="'") {
			alert("\nThe Name field only accepts letters & spaces.\n\nPlease re-enter your Name.");
			p.select();
			return false;
		}
	}
var Phone=document.applynow.phone
	
	if ((Phone.value==null)||(Phone.value=="")){
		alert("Please Enter your Phone Number")
		Phone.focus()
		return false
	}
	if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number")
		//Phone.value=""
		Phone.focus()
		return false
	}
	 
	
	//EMAIL
	var m=document.applynow.email;
	var n=document.applynow.email.value;
	if ((n==null)||(n=="")){
		alert("Please Enter your Email ID")
		m.select()
		return false
	}
	if (echeck(n)==false){
		alert('Please enter valid email ID');
		m.select();
		return false;
	}
	function echeck(str) {
	at = str.indexOf("@");
	dot = str.lastIndexOf(".");
	lengt = str.length;
	con1 = str.substring(0,at);
	con2 = str.substring(at+1,dot);
	con3 = str.substring(dot+1,lengt);

	if(con1=='' || con2=='' || con3=='') return false;

	if(str.indexOf("  ") > -1 || str.indexOf("..") > -1 || str.indexOf("__") > -1 || str.indexOf("--") > -1) return false;
	
	if(at==-1 || dot==-1) return false;

	x = con1.substring(0,1);
	if ((x < "a" || "z" < x) && (x < "A" || "Z" < x) && isNaN(x)) return false;

	x = con1.substring((con1.length)-1,(con1.length));
	if ((x < "a" || "z" < x) && (x < "A" || "Z" < x) && isNaN(x)) return false;

	x = con1.substring(1,(con1.length)-1);
	for(i=0, y=0; i<con1.length-2; i++, y=x.substring(i, i+1)) if ((y < "a" || "z" < y) && (y < "A" || "Z" < y) && isNaN(y) && y!='.' && y!='_' && y!='-') return false;
	
	x = con2.substring(0,1);
	if ((x < "a" || "z" < x) && (x < "A" || "Z" < x) && isNaN(x)) return false;

	x = con2.substring((con2.length)-1,(con2.length));
	if ((x < "a" || "z" < x) && (x < "A" || "Z" < x) && isNaN(x)) return false;
	
	x = con2.substring(1,(con2.length)-1);
	for(i=0, y=0; i<con2.length-2; i++, y=x.substring(i, i+1)) if ((y < "a" || "z" < y) && (y < "A" || "Z" < y) && isNaN(y) && y!='.' && y!='_' && y!='-') return false;		
	
	for(i=0, x=0; i<con3.length; i++, x = con3.substring(i, i+1)) if ((x < "a" || "z" < x) && (x < "A" || "Z" < x)) return false;
	if ((con3.length)<2 || (con3.length)>4)  return false;
}
 	 
	//COMMENTS
	var m=document.applynow.dob.value;
	var p=document.applynow.dob;
	if ((m=='mm-dd-yyyy')||(m==' ')) {
		alert("Enter your Date");
		p.select();
		return false;
	}   
	
}