public String onChangeString ()
{
String onChangeString = null;
if (bindingForName(BindingNames.action) != null || booleanValueForBinding(BindingNames.isRefresh)) {
AWRequestContext requestContext = requestContext();
AWResponse response = requestContext.response();
response.appendContent(AWConstants.Space);
response.appendContent(AWConstants.OnChange);
response.appendContent(AWConstants.Equals);
response.appendContent(AWConstants.Quote);
AWXBasicScriptFunctions.appendSubmitCurrentForm(requestContext, _elementId);