How to set Field values " script include to client side" when form Load

[Kishore8]

Script Include :

var HelloWorld   = Class.create();

HelloWorld .prototype = Object.extendsObject(global.AbstractAjaxProcessor, {

      Approve: function(a) {

                    return "The Server Says Hello " + this.getParameter('sysparm_user_name') + "!" ;

    }

});

client Side OnLoad:                                                                                                                                                                                              

function onLoad() {                                                                                                                                                                                                      

    //Type appropriate comment here, and begin script below

    var ga = new GlideAjax('HelloWorld');

ga.addParam('sysparm_name','Approve');

ga.addParam('sysparm_user_name',"Bob");

ga.getXMLWait();

alert(ga.getAnswer());

}

i would like to set values

state=3,category=software, short_description=''welcome to scripting"     i want to write this code in script include and i would like to call that server code when   i load a form   in client side, this values     should set into field.

[Harish KM]

HI , here is the wrkg code

Script Include

var IncidentUtils = Class.create();

IncidentUtils.prototype = Object.extendsObject(AbstractAjaxProcessor, {

  getIncidentValue: function()

  {

  var obj = {short_description: "Setting values from SI", state: 3, category: "software"};

  var json = new JSON();

  var data = json.encode(obj); //JSON formatted string

  return data;

  }

});

Client script

function onLoad() {

  alert('load');

  var ga = new GlideAjax('IncidentUtils');

  ga.addParam('sysparm_name','getIncidentValue');

  ga.getXML(HelloWorldParse);

  function HelloWorldParse(response) {

  var answer = response.responseXML.documentElement.getAttribute("answer");

    alert(answer);

  answer = answer.evalJSON();

  g_form.setValue("short_description", answer.short_description);

  g_form.setValue("category", answer.category);

  g_form.setValue("state", answer.state);

    }

}

Result:

[Kishore8]

Hi ,

i want to display message after that field values mentioned over there places

can we add this calling message ''Bob''

i mean display message as   "The Server Says Hello Bob", after that values need to display there places..

onLoad:

ga.addParam('sysparm_name','Approve');

  ga.addParam('sysparm_user_name',"Bob");

Script Include

return "The Server Says Hello " + this.getParameter('sysparm_user_name') +   "!"