var xmlHttp

function mailing(f)
{
   showMessage('message');
   var mail = document.getElementById("email").value;
	 xmlHttp=GetXmlHttpObject();
	 if (xmlHttp==null)
   {
   		alert ("Your browser does not support AJAX!");
  		return;
   } 
	 var url="mailing.php";
	 url=url+"?f="+f;
   url=url+"&mail="+mail;
   url=url+"&sid="+Math.random();
   xmlHttp.onreadystatechange=stateMessageChanged;
   xmlHttp.open("GET",url,true);
   xmlHttp.send(null);
} 

function stateMessageChanged() 
{ 
   var message = document.getElementById('message');
   if (xmlHttp.readyState==4)
   { 
	    response = xmlHttp.responseText.split('|');
      obj = document.getElementById("email");
			if (response[0]==1) {
         obj.value='e-mail';
         obj.blur();
		  } else {
         obj.focus();
			}
      message.innerHTML = response[1];
	    setTimeout("closeMessage('message')",5000);
   } else if (xmlHttp.readyState<4)
      message.innerHTML = 'Please wait...';
}

function contact()
{
   showMessage('contact');
	 xmlHttp=GetXmlHttpObject();
	 if (xmlHttp==null)
   {
   		alert ("Your browser does not support AJAX!");
  		return;
   } 
	 var url="contact.php?f=formularz";
	 xmlHttp.onreadystatechange=stateContactChanged;
   xmlHttp.open("GET",url,true);
   xmlHttp.send(null);
}



function stateContactChanged() 
{ 
   var contact = document.getElementById('contact');
   if (xmlHttp.readyState==4)
   { 
      contact.innerHTML = xmlHttp.responseText;
   } else if (xmlHttp.readyState<4)
      contact.innerHTML = 'Please wait...';
}

function GetXmlHttpObject()
{
   var xmlHttp=null;
   try
     {
     // Firefox, Opera 8.0+, Safari
     xmlHttp=new XMLHttpRequest();
     }
   catch (e)
     {
     // Internet Explorer
     try
       {
       xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
       }
     catch (e)
       {
       xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
       }
     }
   return xmlHttp;
}

function showMessage(id)
{
   var message = document.createElement('div');
	 closeMessage(id);
   message.className = id;
   message.id = id;
	 if (id=='message') message.onclick = function() { closeMessage(id); }
   document.getElementsByTagName('body')[0].appendChild(message);
}

function closeMessage(id)
{
   var message = document.getElementById(id);
	 if (message) message.parentNode.removeChild(message);
}

function screenWidth()
{
   var screenW = 640;
   if (parseInt(navigator.appVersion)>3)
	 {
      screenW = screen.width;
   }
   else if (navigator.appName == "Netscape" && parseInt(navigator.appVersion)==3 && navigator.javaEnabled())
	 {
      var jToolkit = java.awt.Toolkit.getDefaultToolkit();
      var jScreenSize = jToolkit.getScreenSize();
      screenW = jScreenSize.width;
   }
	 
	 return screenW;
}

function mail_send()
{
   var form = document.contact;
	 var url = 'contact.php?f=wysylka';

	 for (var i=0; i<form.elements.length; i++)
	 {
	     if (form.elements[i].name!=='')
	     	 url += "&"+form.elements[i].name+"="+form.elements[i].value;
	 } 

	 xmlHttp=GetXmlHttpObject();
	 if (xmlHttp==null)
   {
   		alert ("Your browser does not support AJAX!");
  		return;
   } 

   xmlHttp.onreadystatechange=stateContactChanged2;
   xmlHttp.open("GET",url,true);
   xmlHttp.send(null);

   return false;
}

function stateContactChanged2() 
{ 
   var contact = document.getElementById('contact');
   if (xmlHttp.readyState==4)
   { 
	    if (xmlHttp.responseText !== '')
			   alert(xmlHttp.responseText);
			else {
			   contact.innerHTML = 'Message has been send.';
	    	setTimeout("closeMessage('contact')",5000);
		  }
   }
}