问如何在blackberry web works/HTML5应用程序中调用Java web服务方法？

EN

var xmlHttp = new XMLHttpRequest();
function CallWebService(){
    xmlHttp.open('GET', 'http://YOURWEBSERVICEURLHERE', true);
    xmlHttp.onreadystatechange = callbackFunction;
    xmlHttp.send();
}

function callbackFunction(){
    if (xmlHttp.readyState != 4) 
    return; 
var result = xmlHttp.responseText;
alert(result);  
}