如何从Alfresco UI页面中获取密码，该页面已由admin为新用户创建

我使用这段代码自动生成邮件。现在的问题是邮件中显示的密码是脚本生成的密码。我希望密码从alfresco新用户页面获取，其中管理员已经为新用户创建了密码，而不是任何随机字符串。下面是我为自动邮件生成而生成的脚本。

if (document.isContainer && document.displayPath == "/Company Home/User Homes") {
var owner = document.properties["cm:owner"];
var pNode = people.getPerson(owner);
if (pNode!=null && pNode.exists()){
    var userName = pNode.properties.userName;
    var email = pNode.properties.email;
    var randPassword = Math.random().toString(36).substr(2, 30)+"-"+(Date.now());
    people.setPassword(userName, randPassword);
    logger.debug("Invitation mail: User "+userName+" password has been changed.");
    var mail = actions.create("mail");
    //mail.parameters.from = "noreply@customdomain";
    mail.parameters.to = email; 
    mail.parameters.subject = "Welcome to the site, login: "+userName+", password: "+randPassword;
    mail.parameters.template = companyhome.childByNamePath("Data Dictionary/Email Templates/Invite Email Templates/invite_user_email.ftl");
    var templateModel = new Array();
    templateModel['newPassword'] = randPassword; // use ${newPassword} expression inside template
    mail.parameters.template_model = templateModel;
    mail.executeAsynchronously(document);
    logger.debug("Invitation mail has been sent to "+email);
} else {
    logger.warn("Invitation mail: User not found: "+owner);
}
}