/*--- Avanquest WebEasy Document Script ---*/

IE=(navigator.appName.indexOf('Microsoft') >= 0);
NS=(navigator.appName.indexOf('Netscape') >= 0);
SF=(navigator.appName.indexOf('Safari') >= 0);
FF=(navigator.userAgent.indexOf('Firefox') >= 0);
OP=(navigator.userAgent.indexOf('Opera') >= 0);
GK=(navigator.userAgent.indexOf('Gecko') >= 0);
V4=(parseInt(navigator.appVersion) >= 4);
if((V5=navigator.appVersion.indexOf('MSIE '))<0) V5=-5;
V5=(parseInt(navigator.appVersion.charAt(V5+5))>=5);
MAC=(navigator.userAgent.indexOf('Mac')!=-1);


/*--- EndOfSection---*/

/*--- Script for contact form validation ---*/

function validate_required(field)
{
with (field)
  {
  if (value==null||value=="")
    {
	return false;
    }
  else
    {
    return true;
    }
  }
}

function validate_form(thisform)
{
with (thisform)
  {
	  	name.style.background = 'White';
	  	number.style.background = 'White';
	  	email.style.background = 'White';  
	  if (validate_required(name)==false)
	  {
	  	alert("Please enter your name");
	  	name.style.background = 'lightskyblue';
	  	name.focus();return false;
	  }
	  
	  if ((validate_required(email)==false) && (validate_required(number)==false))
	  {
	  alert("Please enter your email address or Telephone number");
	  number.style.background = 'lightskyblue';
	  email.style.background = 'lightskyblue';
	  number.focus();return false;
	  }
	  
	if ((validate_required(email)==true) && (validate_required(number)==true))
	  {
     if (validate_email(email,"Please enter a valid email address")==false)
    {
    email.focus();
    email.style.background = 'lightskyblue';
    return false;
    }
    	if (validate_phone(Number)==false)
    {
    number.focus();
    number.style.background = 'lightskyblue';
    return false;
    }
	  }
	  
    
     if (validate_required(number)==false)
     {
     if (validate_email(email,"Please enter a valid email address")==false)
    {
    email.focus();
    email.style.background = 'lightskyblue';
    return false;
    }
    }
	
	if (validate_required(email)==false){
	if (validate_phone(number)==false)
    {
    number.focus();
    number.style.background = 'lightskyblue';
    return false;
    }
  }
  
  }
}

function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate_phone(fld) {

	if (checkInternationalPhone(fld.value)==false){
		alert("Please Enter a Valid Phone Number");
        fld.focus();
        fld.style.background = 'lightskyblue';
    	return false;
	}

}

   
  
// 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 = 11;

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);
}

/*--- EndOfSection---*/