How create indesign using Java Script

Question

I am new in indesign and want to create indesign application using JavaScript.
When i use AppleScript to create Indesign Application i use this statement
tell application "Adobe InDesign CS5.5"
set myDocument to make document with properties
end tell
Indesign Application create sucessfully.
How create Indesign Application using JavaScript ?
or what is equivelent statement of ( tell application "Adobe InDesign CS5.5" ) in Java Script.
There are some java scripting example given on forum or in sdk.These all example start with app.
when I debug these java script using ExtendScript ToolKit 3.6 It give error on app (undefined app).I think this app ia application object.
How create  indesign application object  app in javascript ?
While this script run sucessfully when i put these script in C:\Program Files\Adobe\Adobe InDesign CS5.5\Scripts
and to run these script use Scripts panel (choose Window > Utilities > Scripts), then double-click the script name in the Scripts panel in indesign application.But In this case first i start indesign application and then choose Window > Utilities > Scripts then double-click the script name in the Scripts panel.
I want to create Indesign Application (instance) using JavaScript.When I run or (debug) my JavaScript in any javaScript tool like ExtendScript ToolKit 3.6 then Indesign application should start, like in Apple Script.
Thanks

Answer 1

Thanks Vamitul for reply
For example when i run SelectObjects.jsx An InDesign CS5.5 JavaScript in ESTK  then message prompt "Target Adove Indesign CS5.5 is not running. Do you want to lanch." Then on click yes Indesign application start.
I want to Know how indesign object "app" is created to start Indesign application on click yes.
http://wwwimages.adobe.com/www.adobe.com/content/dam/Adobe/en/devnet/indesign/cs55-docs/In DesignScripting/InDesign-ScriptingTutorial.pdf
Like in VB to create indesign object we use CreateObject("InDesign.Application"). In javascript how create object say "app" of InDesign Application.
For example if  i write
var myDocument = app.documents.add();
var myTextFrame = myDocument.pages.item(0).textFrames.add();
myTextFrame.geometricBounds = ["6p", "6p", "24p", "24p"];
myTextFrame.contents = "Hello World!";
in a simple text file and save it with .js extention and to open this double click on this  it give error undefined "app".
Source :Microsoft JScript runtime error
So how define "app" or create indesign object ?
Thanks