Javascript to Java Web Application -

i'm trying simple web project in eclipse, i'm new bare me. goal have .jsp/html file presentation layer, javascript handle logic, , java handle server side stuff. simple test, want able javascript code contact web server , have java code return date. here have right (note i'm displaying "trouble" parts)

.jsp (timer.jsp):

<div ><h2 id="date" class="main"></h2></div> 

javascript (timer.js):

var xhr = new xmlhttprequest();     document.getelementbyid("date").innerhtml = xhr.responsetext;     xhr.open("get", "cooptimer", true);     xhr.send(); 

java:

protected void doget(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception {     // todo auto-generated method stub     dateformat dateformat = new simpledateformat("yyyy/mm/dd hh:mm:ss");     date date = new date();      request.setattribute("date", dateformat.format(date).tostring());      request.getrequestdispatcher("/timer.jsp").forward(request, response);  } 

the javascript sure wrong , trouble area. essentially, goal have header id "date" date javascript, , javascript value java servlet.

if can point me in right direction, whether it's resources, have you, terrific. thank you!

edit: here final code used. after hours of trying figure out wrong...nothing mentioned in eclipse right clicking html , run on server. humiliating mistake, 1 won't ever forget again.

here code used return simple date string:

.jsp (timer.jsp):

<div ><h2 id="date" class="main"></h2></div> 

javascript (timer.js)

$("#date").load("http://127.0.0.1:14949/cooptimer/cooptimer"); 

java:

/**      * @see httpservlet#doget(httpservletrequest request, httpservletresponse response)      */ protected void doget(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception {         // todo auto-generated method stub         dateformat dateformat = new simpledateformat("yyyy/mm/dd hh:mm:ss");         date date = new date();          response.setcontenttype("text/plain");           response.setcharacterencoding("utf-8");          response.getwriter().write(date.tostring());          //system.out.println("ping");     } 

there @ least 2 problems.

first: result of servlet rendered timer.jsp. , timer.jsp doesn't date stored in request servlet. if want servlet return formatted date, don't need forward jsp. write date response's writer.

second: javascript code tries change innerhtml of header content of response before sending request. can't work. advice, make js code easier write , understand , portable between browsers, use jquery , ajax functions:

$('#date').load('cooptimer');