javascript - capture input and convert characters

Question

I want to capture input charcters in text box, convert then according to a table and put them back in text box as user types.

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Answer 1

Should do the trick. Now works wherever caret is and even when you copy/paste WECZ into field (if that matters)

var conversionMap = {W:1,E:2,R:3,S:4,D:5,F:6,Z:7,X:8,C:9};
function alphaToNum(){
    var field = document.getElementById('idMyText');
    var value = field.value.split('');
    var i = 0, len = value.length;

    for(i;i

its working good until we didn't use utf-8 chars like öéáí etc... any idea for repair this "leak" ?