the right way is, I should create a new branch called "algo-OddEvenSort",
which is based on main branch,

then switch to OddEvenSort branch, code the new feature,
but I forgot, I commit and push to remote on rwd-layout branch,
so now I need to do something to make it back to right way.

now, I create and switch to the algo-OddEvenSort branch,
I try to do cherry-pick command to merge latest node of rwd-layout to
algo-OddEvenSort branch,

then I would try revert rwd-layout branch for restore the impact to
remote origin on GitHub.

OK, let's do this.

Changes to be committed:
modified:   index.html
		1. add new algorithm , odd-even sorting algorithm
		2. add odd-even-sort.js file in bottom of index.html

	new file:   js/odd_even_sort.js
		1. add new odd-even sorting algorithm content

	modified:   js/test.js
		1. add try catch syntax in algoChosen() function
		2. add OddEvenSort value
		3. add , if algoChosen() error, then window alert pops
		   up, notices user to press F5 to refresh page.

…ick merge conflict