package com.blogspot.na5cent.app.service;
/**
*
* @author redcrow
*/
public interface Worker {
public void working();
}
implementations 
<head>
....
....
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
....
....
</head>
thank you : http://stackoverflow.com/questions/1341089/using-meta-tags-to-turn-off-caching-in-all-browsers
var $input = $('.input-form');
var timeoutReference;
$input.keypress(function(){
if(timeoutReference){
window.clearTimeout(timeoutReference);
}
timeoutReference = setTimeout(function(){
window.clearTimeout(timeoutReference);
//your code ...
}, 300);
});
.... <f:convertDateTime pattern="dd/MM/yyyy HH:mm:ss" locale="en" timeZone="GTM+7" /> ....timeZone="GTM+7" is Bangkok, Hanoi, Jakarta
...
...
...
<context-param>
<param-name>javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE</param-name>
<param-value>true</param-value>
</context-param>
...
...
...
...
import javax.persistence.Basic;
...
...
...
@Entity
@Table(name = "Staff")
public class Staff implements Serializable{
....
....
....
@Lob
@Basic(fetch = FetchType.LAZY) //****
private byte[] image;
}