just change the myHobbies to myHobbiesA, myHobbiesB and myHobbiesC… Would that help?
EDIT: Sorry, now I got what you mean. You can try this:
myLoadVars = new LoadVars();
myLoadVars.load("http://www.myserver.com/myHobbies.txt");
Just change the myserver.com to three website addresses you use. Would that help?