Where is downloaded things from editor script being saved?

This script downloads a texture from the web. Does anyone know where it's saved to? I've looked in my project folders but I couldn't find it :(

 // UnityScript
 @script ExecuteInEditMode()
 
 
 
 
 class MyWindow extends EditorWindow {
 
     private var www : WWW;
     var target : Renderer;
     var texture : Texture2D;
 
     @MenuItem ("Window/My Window")
     static function ShowWindow () {
         EditorWindow.GetWindow (MyWindow);
     }
 
     function OnGUI () {
         if(GUILayout.Button("Download")){  LoadTexture("http://download.unity3d.com/webplayer/images/unity-icon-big.jpg"); }
         texture = EditorGUI.ObjectField(Rect(3,60,200,20),"Add a Texture:",texture,Texture);
         if(texture){
             EditorGUI.DrawPreviewTexture(Rect(25,150,100,100),texture);
         }
     }
     /*function OnEnable(){
         LoadTexture("http://download.unity3d.com/webplayer/images/unity-icon-big.jpg");
     }*/
 
     function LoadTexture(url)
     {
         www = new WWW(url);
         #if UNITY_EDITOR
         if (!EditorApplication.isPlaying)
             EditorApplication.update = MyUpdate;
         else
             WaitForDownload();
         #else
         WaitForDownload();
         #endif
     }
 
     #if UNITY_EDITOR
     function MyUpdate ()
     {
         if (www.isDone)
         {
             EditorApplication.update = null;
            LoadCompleted();
         }
     }
     #endif
 
     function WaitForDownload()
     {
         yield www;
         LoadCompleted();
     }
 
     function LoadCompleted()
     {
         //target.sharedMaterial.mainTexture = www.texture;
         texture = www.texture;
     }
 }