After effects counter expression

gistfile1.txt

// Add the following expression for Source Text (Copy the expression, Alt-Click the Source Text Stopwatch, Paste, click outside the box):
// http://www.motionscript.com/design-guide/counter.html

numDecimals = 0;
commas = true;
dollarSign = false;
beginCount = 0;
endCount = 130000;
dur = 4;

t = time - inPoint;
s = linear (t, 0, dur, beginCount, endCount).toFixed(numDecimals);

prefix = "";
if (s[0] == "-"){
prefix = "-";
s = s.substr(1);
}
if(dollarSign) prefix += "$";

if (commas){
decimals = "";
if (numDecimals > 0){
decimals = s.substr(-(numDecimals + 1));
s = s.substr(0,s.length - (numDecimals + 1));
}
outStr = s.substr(-s.length, (s.length-1)%3 +1);
for (i = Math.floor((s.length-1)/3); i > 0; i--){
outStr += "," + s.substr(-i*3,3);
}
prefix + outStr + decimals;
}else{
prefix + s;
}