How to Capture Keys and replace key in javascript

[rammi07]

hi all. could any one show me how i can capture all the keys and do some replace for keys. For example if key K is pressed i want in textbox it shows arabic unicode equivelent for letter k which is ?. Similerly for remaining keys.Thanks

 

[adam0101]

How's this?

<script>
var keyReplacements = [
  ['A','X'],
  ['B','Y'],
  ['C','Z']
];

function switchKey(txt){
  for(var i=0;i<keyReplacements.length;i++){
    if(keyReplacements[i][0].charCodeAt(0) == event.keyCode){
      insertAtCursor(txt,keyReplacements[i][1]);
      return false;
    }
  }
  return true;
}

function insertAtCursor(myField, myValue) {
  //IE support
  if (document.selection) {
    myField.focus();
    sel = document.selection.createRange();
    sel.text = myValue;
  }

  //MOZILLA/NETSCAPE support
  else if (myField.selectionStart || myField.selectionStart == '0') {
    var startPos = myField.selectionStart;
    var endPos = myField.selectionEnd;
    myField.value = myField.value.substring(0, startPos)
    + myValue
    + myField.value.substring(endPos, myField.value.length);
  } else {
    myField.value += myValue;
  }
}
</script>

<input type="text" onkeydown="return switchKey(this)">

Adam

http://adameslinger.blogspot.com/