Why-wont-this-javascript-code-execute-
<!Doctype html>
<html>
<title>JavaScript Tutorial</title>
<body>
<script language = "javascript">
var cleanCities = ["Cheyenne ","Santa Fe ","Tucson ","Great Falls ","Honolulu"];
var cityToCheck = "Tucson";
if(cityToCheck === cleanCities[i])
{
alert("You are clean");
}
</script>
</body>
</html>
it looks logically and syntactically correct so im not sure what im missing.