GuI Drag window

Hi ,

I am new to unity ,i just started my scripting in unity . i am facing a problem with GUI.Dragwindow .

I placed the GuI.Buttons inside a window with their rect positions . when i drag the window it moves on the screen but the buttons inside the GUI window are not responding.

How can i solve this problem , can any one help me , I also posting my script here

I would be thankful to you alot .


using UnityEngine;
using System.Collections;


public class Navigation : MonoBehaviour {
Rect windowRect = new Rect(Screen.width - 500, Screen.height-160, 290, 100);
GUI.WindowFunction windowFunction;
;
public static bool Mouseoperations = true;
public static string StatusofNavigation;
public static Camera currentCamera;

public static string cameraname;
// Use this for initialization
void Start () {
windowFunction = DoMyWindow;
}

// Update is called once per frame
void Update () {

if (Input.GetKeyDown ("escape")) {
Application.LoadLevel(Application.loadedLevel);
}
}
void OnGUI()
{
if (Mouseoperations == true) {
windowRect = GUI.Window (10, windowRect, windowFunction, "Navigation");

}

}
void DoMyWindow(int windowID)
{

GUIContent content = new GUIContent ();
content.image = (Texture2D)Resources.Load ("Pan");
content.tooltip = "Pan";


GUIContent content1 = new GUIContent ();
content1.image = (Texture2D)Resources.Load ("rotate");


//content1.text = "Leather";
GUIContent content2 = new GUIContent ();
content2.image = (Texture2D)Resources.Load ("zoom");;
content2.tooltip = "Zoom";

GUIContent content3 = new GUIContent ();
content3.image = (Texture2D)Resources.Load ("home");;
content3.tooltip = "Reset";


if (ViewpointsScript.camssss != null)
{


Camera cam = GameObject.Find (ViewpointsScript.camssss).GetComponent<Camera> ();

if (GUI.Button (new Rect (10, 20, 50, 60), content1 )) {

StatusofNavigation="Rotate";


cam.gameObject.AddComponent(typeof(Rotate));
cam.GetComponent<Rotate>().enabled=true;
GUI.DragWindow();

}
if (GUI.Button (new Rect (70, 20, 50, 60), content)) {


StatusofNavigation="pan";


cam.gameObject.AddComponent(typeof(Pan));
cam.GetComponent<Pan>().enabled=true;

}
if (GUI.Button (new Rect (130, 20, 50, 60), content2)) {

StatusofNavigation="Zoom";


cam.gameObject.AddComponent(typeof(Zoom));
cam.GetComponent<Zoom>().enabled=true;



}
if (GUI.Button (new Rect (190, 20, 55, 60), content3)) {

Application.LoadLevel(Application.loadedLevel);


}
if (GUI.Button (new Rect (260, 20, 20, 30), "X")) {

Mouseoperations=false;



}
GUI.Label(new Rect(15, 65, 50, 65),content1.tooltip);
GUI.Label(new Rect(85, 65, 50, 65),content.tooltip);
GUI.Label(new Rect(140,65,40,65),content2.tooltip);
GUI.Label(new Rect(200,65,56,65),content3.tooltip);





}

GUI.DragWindow();

}

}