Break word instances to seperate words

breakWordsIntoTwoWords.js

var breakWordsIntoTwoWords = function(sentenceContainingWord, word) {
  var regex = /hypotheek([^ ][-a-z]*)/gi;
  while ((m = regex.exec(sentenceContainingWord)) !== null) {
      if (m.index === regex.lastIndex) {
          regex.lastIndex++;
      }

      // The result can be accessed through the `m`-variable.
      var firstLetterCapital = word.substr(0,1).toUpperCase();
      var searchForWord = m[0].substr(0,1) === firstLetterCapital ? firstLetterCapital + word.substr(1) : firstLetterCapital.toLowerCase() + word.substr(1);  
    	sentenceContainingWord = sentenceContainingWord.replace(m[0], searchForWord + ' ' + m[0].split(searchForWord)[1]);
  }
  return sentenceContainingWord;
}