Throwing a String Exception
var letters = new Array("A","B","C","D","E")
function getLetter(fld) {
try {
var inp = parseInt(fld.value, 10)
if (isNaN(inp)) {
throw "Entry was not a number."
}
if (inp < 1 || inp > 5) {
throw "Enter only 1 through 5."
}
fld.form.output.value = letters[inp-1]
}
catch (e) {
alert(e)
fld.form.output.value = ""
fld.focus()
fld.select()
}
}
Throwing a String Exception