Changing text files for flash to use

Im doing a flash site, and trying to do it with 2 languages. They are contained in 2 separate text files. Now the language selector is placed just after the preloader, containing 2 buttons, each with a portion of code
Button 1:

on (release) {
 _global.lang = "polski";
 gotoAndPlay(3);
}

Button 2:

on (release) {
 _global.lang = "english";
 gotoAndPlay(3);
}

And (for now) 1 textfield in a container clip, the container clip has this code (placed on a frame):

if (_global.lang="english") {
 loadText = new loadVars();
 loadText.load("pagetext_eng.txt");
 loadText.onLoad = function(success) {
  if (success) {
   //trace(success);
   newsbox.html = true;
   newsbox.htmlText = this.news;
 }
};
} else if (_global.lang="polski") {
 loadText = new loadVars();
 loadText.load("pagetext_pl.txt");
  loadText.onLoad = function(success) {
  if (success) {
   //trace(success);
   newsbox.html = true;
   newsbox.htmlText = this.news;
  }
 };
}

Now flash just for hells dogs doesnt want to load a txt file. Wheres the error then?