Function Executes Only Once (instead Of Twice)

I have javascript that sets global variables to true. Here is the code:
<script type="text/javascript">
var count=0;
var castforfood=false;
var sc2mx=false;
var ozrak=false;
var chavodelocho=false;
var jimrising=false;
var day9tv=false;

function justinlive(arg){
if(arg != null){
if(count==2){
ozrak=true;
}
else if(count==5){
day9tv=true;
}}
count++;
}
function livestatus(arg){
if (arg.channel.isLive == true){ .....

The calls to set_status and livestatus work just fine. The problem is calling "justinlive". It only works correctly the first time. The second time, the function does not execute at all. (I tried inserting an "alert ("Hello"); at the beginning of the function, so I know it only gets executed once.)