/********************** Phone Number Validation ************************/

/**
 * 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);
}

function validatePhone(ID){
	var Phone=document.getElementById('phone');
	var Msg=document.getElementById('phoneChk');
	
	if ((Phone.value==null)||(Phone.value=="")){
				
		Msg.setAttribute('style', 'display: block;');
		Msg.style.display="block";
		
		return false
	}
	if (checkInternationalPhone(Phone.value)==false){
			

		Msg.setAttribute('style', 'display: block;');		
		Msg.style.display="block";
		
		Phone.value=""
		
		return false
	}
	Msg.setAttribute('style', 'display: none;');
	Msg.style.display="none";
	return true
 }

function validateEmail(){
	var RegEx = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	var email=document.getElementById('email').value;
	var Msg=document.getElementById('emailMsg');
	
	if ((email==null)||(email=="")||RegEx.match(email) == false){
				
		Msg.setAttribute('style', 'display: block;');
		Msg.style.display="block";
		
		return false
	}
	Msg.setAttribute('style', 'display: none;');
	Msg.style.display="none";
	return true


}