javascript component masktextfield

By instruction in book of vaadin i create MaskTextField.java

@JavaScript({ “masktextfield.js”,“masktextfield-connector.js”, “jquery.maskedinput-1.3.min.js”,“jquery-1.7.2.min.js”})
public class MaskTextField extends AbstractJavaScriptComponent{

public void setValue(String value) {
    getState().value = value;
}

public String getValue() {
    return getState().value;
}

public void setMask(String mask) {
    getState().mask = mask;
}


@Override
protected MaskTextFieldState getState() {
    return (MaskTextFieldState) super.getState();
}	

}

create file MaskTextFieldState.java

public class MaskTextFieldState extends JavaScriptComponentState {

private static final long serialVersionUID = 1L;
public String value;
public String mask;

}

After I create file masktextfiled.js

var mylibrary = mylibrary || {};
mylibrary.MaskTextField = function (element) {

element.innerHTML = "<input id='timemask' type='text' />";
 
var masktextfield = $("#timemask").mask("99:99:99");


  this.getValue = function() {
	return   $("#timemask").val();
  };
        
  this.setValue = function(value) {
	  $("#timemask").val(value);
 };

And create connector file masktextfield-connector.js

window.com_example_javascriptmask_MaskTextField = function() {
// Create the component
var masktextfield = new mylibrary.MaskTextField(this.getElement());

// Handle changes from the server-side
this.onStateChange = function() {

this.getState().value = masktextfield.getValue();

};
Put .js file “masktextfield.js”,“masktextfield-connector.js”, “jquery.maskedinput-1.3.min.js”,“jquery-1.7.2.min.js” in root package.

In ui class init method i create javascriptcomponent and put in layout. Input text field show, but mask ##:##:## not visible
and component method getValue setValue don’t work.

what am I doing wrong?

Do you get any Javascript exceptions?
Did you check the application DOM tree to see if the Component is fully rendered?