function indexOf2(string, toFind, startFrom) {
	for (var i = startFrom; i <= (string.length - toFind.length); i++) {			
		if (string.substring(i, i + toFind.length) == toFind)
			return i;
	}
	return -1;
}					

function lastIndexOf2(string, toFind, startFrom) {
	var foundIndex = -1;
	for (var i = startFrom; i <= (string.length - toFind.length); i++) {			
		if (string.substring(i, i + toFind.length) == toFind)
			foundIndex = i;
	}
	return foundIndex;
}