<!DOCTYPE html>
<html>
<head>
<title>Kontrola formulára</title>
<meta charset="utf-8">
<script>
function checkForm() {
var name = document.formCheckName.name.value;
var cont = document.formCheckName.pass.value;
var contr = document.formCheckName.cpass.value;
if (name == "")
document.getElementById("mark").innerHTML = "!";
else
document.getElementById("mark").innerHTML = "";
if(cont == contr)
alert("chyba");
else
alert("chyba");
}
</script>
<style>
.red{
color: red;
}
</style>
</head>
<body>
<form name="formCheckName" onSubmit="return checkForm();">
<input type="submit" value="Odošli"><br>
Meno:<input name="name" type="text"><p id="mark" class="red"></p>
Heslo: <input name="pass" type="password"><p id="mar" class="red"></p>
Heslo2: <input name="cpass" type="password">
</form>
</body>
</html>
