function NiceTextBoxChanged(TextBoxId_prefix) {
    var textBoxOnChange = document.getElementById(TextBoxId_prefix + 'HiddenFieldOnChange').value;
    if (textBoxOnChange != "") {
        var params = textBoxOnChange.substring(textBoxOnChange.indexOf('(') + 1, textBoxOnChange.indexOf(')'));
        if (params != "") {
            params = params.split(',');
            window[textBoxOnChange.substring(0, textBoxOnChange.indexOf('('))].apply(this, params);
        }
        else {
            window[textBoxOnChange.substring(0, textBoxOnChange.indexOf('('))]();
        } 
    }
}