<!doctype html>
<head>
<meta charset="utf-8">
</head>
<html>
<body>
<div id="formularz">
<form method="post">
<table>
<tr><td>Podaj liczbę dorosłych:</td><td><input type="text" id="d1"></td></tr><br>
<tr><td>Podaj liczbę dzieci:</td><td><input type="text" id="d2"></td></tr><br>
<tr><td>Podaj liczbę dni:</td><td><input type="text" id="d3"></td></tr><br>
<tr><td colspan="2" align-"right">
<input type="button" id="przycisk" value="oblicz" onClick="przelicz()">
</td></tr>
</table>
</form></div>
<div id="wynik"></div>
<script>
function przelicz()
{
var dor=document.getElementById("d1").value;
var dz=document.getElementById("d2").value;
var dni=document.getElementById("d3").value;
if(!isNaN(dor) && !isNaN(dz) && !isNaN(dni) && dor!=" " && dz!=" " && dni!=" ");
{
var koszt=(dor*35+dz*25)*dni;
document.getElementById("wynik").innerHTML="Dokonałeś rezerwacji na " + dni + "dni <br> dla" + dor +"dorosłych i" + dz + "dzieci.<br> Koszt calkowity noclegów wynosi " +koszt +"zł";
}}
</script>
</body>
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}