browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion); 

if (browserName == "Netscape" && browserVer >= 3) version="ok";
else if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version="ok";
else version="no"; 

if (version == "ok") { 

m1 = new Image();
m1.src = "images/firma_off.gif";
m1_on = new Image();
m1_on.src = "images/firma_on.gif";

m2 = new Image();
m2.src = "images/obsluga_off.gif";
m2_on = new Image();
m2_on.src = "images/obsluga_on.gif";

m3 = new Image();
m3.src = "images/lokalizacja_off.gif";
m3_on = new Image();
m3_on.src = "images/lokalizacja_on.gif";

m4 = new Image();
m4.src = "images/fakty_off.gif";
m4_on = new Image();
m4_on.src = "images/fakty_on.gif";

m5 = new Image();
m5.src = "images/pasazerowie_off.gif";
m5_on = new Image();
m5_on.src = "images/pasazerowie_on.gif";

m6 = new Image();
m6.src = "images/biznes_off.gif";
m6_on = new Image();
m6_on.src = "images/biznes_on.gif";

m7 = new Image();
m7.src = "images/klienci_off.gif";
m7_on = new Image();
m7_on.src = "images/klienci_on.gif";

m8 = new Image();
m8.src = "images/praca_off.gif";
m8_on = new Image();
m8_on.src = "images/praca_on.gif";


m10 = new Image();
m10.src = "images/english_off_2.gif";
m10_on = new Image();
m10_on.src = "images/english_on_2.gif";

m11 = new Image();
m11.src = "images/glowna_off_2.gif";
m11_on = new Image();
m11_on.src = "images/glowna_on_2.gif";

m12 = new Image();
m12.src = "images/mapa_off_2.gif";
m12_on = new Image();
m12_on.src = "images/mapa_on_2.gif";

m13 = new Image();
m13.src = "images/korporacja_off_2.gif";
m13_on = new Image();
m13_on.src = "images/korporacja_on_2.gif";

m14 = new Image();
m14.src = "images/kontakt_off_2.gif";
m14_on = new Image();
m14_on.src = "images/kontakt_on_2.gif";

m15 = new Image();
m15.src = "images/sprawy_prac_off_2.gif";
m15_on = new Image();
m15_on.src = "images/sprawy_prac_on_2.gif";

} 

function img_over(obrazek) {
if (version == "ok") {
document[obrazek].src = eval(obrazek + "_on.src");
}
} 

function img_out(obrazek) {
if (version == "ok") {
document[obrazek].src = eval(obrazek + ".src");
}
} 

//Preload buttonów podmiany
function preload() {
  if (!document.images) return;
  var ar = new Array();
  var arguments = preload.arguments;
  for (var i = 0; i < arguments.length; i++) {
    ar[i] = new Image();
    ar[i].src = arguments[i];
  }
}

//Otwieranie okienka popup

        function Okno(szer,wys,adres) {
        var winl = ((screen.width ) / 2 )- (szer+10) /2;
        var wint = ((screen.height ) / 2)- ( wys+10) /2 ;

    
Nowe=window.open(adres,'','top='+wint+',left='+winl+',toolbar=no,menubar=no,location=no,personalbar=no,scrollbars=no,directories=no,status=no,resizable=no,width='+szer+',height='+wys);
 Nowe.focus; 
    
}


//akceptowanie termow

//"Accept terms" form submission- By Dynamic Drive
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use

var checkobj

function agreesubmit(el){
checkobj=el
if (document.all||document.getElementById){
for (i=0;i<checkobj.form.length;i++){  //hunt down submit button
var tempobj=checkobj.form.elements[i]
if(tempobj.type.toLowerCase()=="submit")
tempobj.disabled=!checkobj.checked
}
}
}

function defaultagree(el){
if (!document.all&&!document.getElementById){
if (window.checkobj&&checkobj.checked)
return true
else{
alert("Prosze przeczytac warunki")
return false
}
}
}

//alerty

function korekta(formobj){
	// Enter name of mandatory fields
	var fieldRequired = Array("imie", "nazwisko", "firma", "stanowisko", "telefon", "email", "typ_lotu", "routing", "kod");
	// Enter field description to appear in the dialog box
	var fieldDescription = Array("Imię", "Nazwisko", "Firma", "Stanowisko", "Telefon", "Email", "Typ Lotu", "Routing", "Kod IATA");
	// dialog message
	var alertMsg = "Proszę wypełnić pola:\n";

	var l_Msg = alertMsg.length;

	for (var i = 0; i < fieldRequired.length; i++){
		var obj = formobj.elements[fieldRequired[i]];
		if (obj){
			switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == ""){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "select-multiple":
				if (obj.selectedIndex == -1){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "text":
			case "textarea":
				if (obj.value == "" || obj.value == null){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			default:
			}
			if (obj.type == undefined){
				var blnchecked = false;
				for (var j = 0; j < obj.length; j++){
					if (obj[j].checked){
						blnchecked = true;
					}
				}
				if (!blnchecked){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
			}
		}
	}

	if (alertMsg.length == l_Msg){
		return true;
	}else{
		alert(alertMsg);
		return false;
	}
}

function ShowDocuments(){
    document.getElementById("Documents").style.display = 'block';
}