Ciao morphy79,
JavaScript è CaseSensitive... readOnly va con la O Maiuscola
codice:<form> <select name="NomeSelect" onchange="ro=(this.selectedIndex==1);this.form.NomeText1.readOnly=ro;this.form.NomeText2.readOnly=ro;this.form.NomeText3.readOnly=ro;"> <option>Normale</option> <option>readOnly</option> </select> <input type="text" name="NomeText1"> <input type="text" name="NomeText2"> <input type="text" name="NomeText3"> </form>![]()