Javascript beginner if-then question

[lifeincolour]

Hi... I'm messing about with a simple code that finds out if you're Mr, Mrs, Master or Miss and then writes it to the page, as so...

name=prompt("What is your second name?","Name");
sex=prompt("Are you a man or a woman?","man/woman");
marital=prompt("Are you single or married?","unmarried/married");

if (sex=="man" && marital=="unmarried") {fulltitle="Master"};
if (sex=="man" && marital=="married") {fulltitle="Mr"};
if (sex=="woman" && marital=="unmarried") {fulltitle="Miss"};
if (sex=="woman" && marital=="married") {fulltitle="Mrs"};

document.write(fulltitle);
document.write(" ");
document.write(name);

But how would I add a piece of code that would write different messages to the page if

a) neither "man" nor "woman" was typed in correctly
b) neither "married" nor "unmarried" was typed in correctly?

[chrismiceli]

if (sex != man && sex != woman) {
alert("you mistyped it")
}
if (marital != married && marital != unmarried) {
alert("you mistyped it")
}

[lifeincolour]

Aha! Thanks mate
Chloe

[redhead]

or just put:

else { alert('You cannot spell.'); };

at the end of all them if {}; 's