ActionScript 3 :: Counting Number Of FlashVars Before Entering If Statement

I am creating a simple image viewer using AS3 and getting image URLs from flashVars in the HTML. I want to use an if argument to have it perform one function if there is only one flashVar and another if there are more. I have it reading the flashVars fine and can write if statements all day long, the trouble I am having is counting the number of flashVars being passed from the HTML.

var numberOfVars:Number = 0; // to store the number of flashVars
var paramObj:Object = LoaderInfo(this.root.loaderInfo).parameters; //get the flashVars
for each (paramObj in LoaderInfo(this.root.loaderInfo).parameters){
numberOfVars + 1;
} var tf:TextField = new TextField();
addChild(tf);
[Code] .....