Set Focus After Last Character in Text Box

Question

I have 3 text boxes for a phone number. As the user types, it automatically moves from one textbox to the next. When the user presses backspace, I can move focus to the pr

Answer 1

Code for any Browser:

function focusCampo(id){
    var inputField = document.getElementById(id);
    if (inputField != null && inputField.value.length != 0){
        if (inputField.createTextRange){
            var FieldRange = inputField.createTextRange();
            FieldRange.moveStart('character',inputField.value.length);
            FieldRange.collapse();
            FieldRange.select();
        }else if (inputField.selectionStart || inputField.selectionStart == '0') {
            var elemLen = inputField.value.length;
            inputField.selectionStart = elemLen;
            inputField.selectionEnd = elemLen;
            inputField.focus();
        }
    }else{
        inputField.focus();
    }
}