controling flash

[almgo00]

Hi, I am web master I was asked to control a flash
based navigation menu Thur JavaScript for work.
we wanted to control the flash menu Thur JavaScript.
IE: to go to a certain frame when the html page loads.
I got it working using JavaScript but I am havening
problems one in IE7 it does not load on the first time
once I refresh it does, sometimes the links inside the
flash menu don't work, but what is driving me crazy is
in Firefox it loads fine but when I go back and forth it
does not work. Also its not working at all in safari.
can someone please help me. the code is at the bottom
thanks

<SCRIPT language=JavaScript>

var movieName = "vdo_menu5";
function thisMovie(movieName) {
  // IE and Netscape refer to the movie object differently.
  // This function returns the appropriate syntax depending on the browser.
  if (navigator.appName.indexOf ("Microsoft") !=-1) {
    return window[movieName]
  }    else {
    return document[movieName]
  }
}
function movieIsLoaded (theMovie) {
  if (typeof(theMovie) != "undefined") {
    return theMovie.PercentLoaded() == 100;
  } else {
    return false;
  }
}
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}
addLoadEvent(playgtr3);
addLoadEvent(function() {
});

function playgtr3() {
  if (movieIsLoaded(thisMovie(movieName))) {
  thisMovie(movieName).TGotoFrame("_level0/buttSet",15)
 }
}

</SCRIPT>

<TBODY onload="playgtr3()">