Check value once swf is loaded

Hi, I noticed at the top of your code, you have _parent.test1 and at the bottom of your code, you call function testi<------ not sure if this helps..!!

_parent.saveBookmark("Q1");

_parent.test1();

// The main move has this code on the first frame:

function saveBookmark(loc:String) {
scorm.set("cmi.core.lesson_location",loc);
scorm.save();
}

function getBookmark():String {
return scorm.get("cmi.core.lesson_location");

}
var bookmark:String = getBookmark();
var mySubstring:Number = Number(bookmark.substr(1));

//There's a Q in my bookmark!
if (bookmark.indexOf("Q") !== -1 && bookmark !== undefined) {
//add the underscore after the Q to match filename
bookmark = bookmark.split("Q").join("Q_");
swfURL = bookmark+".swf";
trace(swfURL);
}

function testi() {
trace(mySubstring);
trace("ahhh");
if (mySubstring<=29 && isNaN(mySubstring) == true && bookmark !== undefined) {
  attachMovie("title_foundational","ttl_foundational",1,{_x:217, _y:5});
}
}
startPreload(swfURL);

I want to do 4 things check to see if there is a bookmark, add if the number after the Q is <= 29 greater than 29 less than 30 do something, greater than 30 do something else, and finally add an underscore to the value of the variable bookmark.

var mySubstring:Number = Number(bookmark.substr(1));

//There's a Q in my bookmark!
if(bookmark.indexOf("Q") !== -1 && bookmark !== undefined){

   //add the underscore after the Q to match filename
   bookmark = bookmark.split("Q").join("Q_");
   swfURL = bookmark +".swf";
   trace(swfURL);
}