ActionScript 2.0 :: Profanity Filter - It Fails When The User Enters Only A Single Word?

First of all, props to Informatik at Actionscript.org for the following code. This is a profanity filter that will perform an action when it detects a word from an array. The problem is, it fails when the user enters only a single word:

Code:
var filteredWords:Array = new Array("apple", "grape", "orange", "watermelon");
submitBtn.onPress = function():Void{
if(checkFilteredWords(inputText.text) == true)[code].....

The code uses split(" ") to detect a space which is obviously causing the problem of failing to detect one word offenders. But without this, the filter would detect profanity in a word like "assets".