var request = false;

function createRequest()
{
	try {
	  request = new XMLHttpRequest();
	} catch (trymicrosoft) {
		try {
			request = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (othermicrosoft) {
			try {
				request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (failed) {
				request = false;
			}
		}
	
	}

	if (!request)
 	 alert("Error initializing XMLHttpRequest!");
}


function getImage(name, file) 
{
	createRequest();
	var url = file;
	request.open("POST",url,true);
	request.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	request.onreadystatechange = updateStep;
	request.send("img="+name);
}

/*
function getCustomerInfo() {
	createRequest();
	var phone = document.getElementById("phone").value;
	var url = "lookupcustomer.php";
	request.open("POST",url,true);
	request.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	request.onreadystatechange = updatePage;
//	request.send("phone="+escape(phone));
	request.send("phone="+escape(phone));
}
*/

function updateStep() {
 if (request.readyState == 4) {
   if (request.status == 200) {
     var response = request.responseText;
     document.getElementById("realizacja").innerHTML = response;
   } else
     alert("status is " + request.status);
 }
}

function preloadImages() {
	if (document.images) {
		for (var i = 0; i < preloadImages.arguments.length; i++) {
			(new Image()).src = preloadImages.arguments[i];
		}
	}


}

function drukuj(){ 
if (!window.print) { 
	alert("Twoja przeglądarka nie drukuje!") 
	return 0; 
} 
window.print(); // jeśli wszystko ok - drukuj 
}

function hidden(x) {
	var obj = document.getElementById(x);
	if (obj.style.display=='none')
	{
		obj.style.display='block';
		
	}
	else
		obj.style.display='none';
		

}