$(document).ready(function(){
    $("#contact_submit").click(function(){
      oncheck();
    });
    $("#clear").click(function(){
      clear();
    });
});
function clear(){
      $("#feed_name").val('');
      $("#feed_achternaam").val('');
      $("#feed_telephone").val('');
      $("#feed_email").val('');
      $("#feed_bericht").val('');
}

function chkEmail(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }

		 if (str.indexOf(" ")!=-1){
		    return false
		 }
 		 return true
	}
function oncheck()
{

  var name  = document.getElementById('feed_name').value;
  var first_name  = document.getElementById('feed_achternaam').value;
  var telephone  = document.getElementById('feed_telephone').value;
  var email = document.getElementById('feed_email').value;
  var bericht  = document.getElementById('feed_bericht').value;

  var a= email.indexOf("@");
  var dot=email.lastIndexOf(".");
  var len=email.length;
  var alpha = /\D/;
  if(name == ""){
    alert("Vul uw voornaam in");
    $("#feed_name").focus();
    return false;
  }
   else if(name.length < 3)
  {
    alert("Voornaam moet groter zijn dan 3 karakters");
    $("#feed_name").focus();
    return false;

  }
   else if(!name.match(alpha) )
  {
    alert(" Voornaam mag alleen de volgende karakters bevatten (A-Z, a-z, spatie en punt)");
    $("#feed_name").focus();
    return false;

  }
  else if(first_name == ""){
    alert("Vul uw achternaam in");
    $("#feed_achternaam").focus();
    return false;
  }
   else if(first_name.length < 3)
  {
    alert("Achternaam moet groter zijn dan 3 karakters");
    $("#feed_achternaam").focus();
    return false;

  }
   else if(!first_name.match(alpha) )
  {
    alert("Achternaam mag alleen de volgende karakters bevatten (A-Z, a-z, spatie en punt)");
    $("#feed_achternaam").focus();
    return false;

  }
  else if(telephone == "")
  {
    alert("Vul uw telefoonnummer in");
    $("#feed_telephone").focus();
    return false;
  }
  else if(!checkInternationalPhone(telephone)){
    if(minerr)
    {
      alert("Telefoonnummer moet langer zijn dan 10 karakters");
      $("#feed_telephone").focus();
      return false;
    }
    else if(maxerr)
    {
      alert("Telefoonnummer moet korter zijn dan 15 karakters");
      $("#feed_telephone").focus();
      return false;
    }
    else
    {
    alert("Alleen 0-9 spatie + - () zijn toegestaan");
    $("#feed_telephone").val('');
    $("#feed_telephone").focus();
    return false;
    }
  }
  else if((telephone.length < 10)){
    alert("Telefoonnummer moet langer zijn dan 10 karakters");
    $("#feed_telephone").focus();
    return false;
  }
  else if((telephone.length > 15)){
    alert("Telefoonnummer moet korter zijn dan 15 karakters");
    $("#feed_telephone").focus();
    return false;
  }
  else if(email == "")
  {
    alert("Vul correcte email adres");
     $("#feed_email").focus();
    return false;
  }
  else if(!chkEmail(email))
  {
      alert("Vul correcte email adres");
      $("#feed_email").focus();
      return false
  } 
  else if(bericht == "")
  {
    alert("Vul uw bericht in");
    $("#feed_bericht").focus();
    return false;
  }
  else
  {
    var generator = Math.random()*100000;
	var arg= $("input[@type=text]").serialize();
	arg+='&'+$("textarea").serialize();
	//arg+='&initial='+$("input[@name=initial]:checked").val();
		//arg+='&'+$("input[@type=password]").serialize();
		arg+="&time="+generator;

		//alert(arg);
		 $.ajax({
		  url: "ajax_contact.php",
		  type: "GET",
		  dataType: 'html',
		  data: arg,
		  timeout: 2000,
		  cache: false,
		  success: function(html){
		    //alert(html);
		    if(html == "notsent")
			{
				$("#status").html('<font color="#FF0000">Verzenden mislukt</font>');
                setTimeout("document.getElementById('status').style.display='none'",5000);
                clear();
			}
			else if(html == "sentsuccess")
			{
				$("#status").html('<font color="#FF0000">Succesvol verzonden</font>');
                setTimeout("document.getElementById('status').style.display='none'",5000);
                clear();
                //$("#feed_telephone").val('');

			}
		  }
		});
  }
}





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;
var maxDigitsInIPhoneNumber = 15;
var minerr = 0;
var maxerr = 0;

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) if(c != "+" && c != "(" && c != ")" && c != " ") returnString += c;
    }
    alert(returnString);
    return returnString;
}

function checkInternationalPhone(strPhone){
var bracket=3
minerr = 0;
maxerr = 0;
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));
if(s.length < minDigitsInIPhoneNumber)
{
  minerr = 1;
  return false;
}
if(s.length > maxDigitsInIPhoneNumber)
{
  maxerr = 1;
  return false;
}
}