Modify js file
Merge branch 'master' of https://github.com/jyt0532/CS598
Add show btn and hide btn
merge two buttons to one button
add dollar sign
add restaurant photo
Merge remote-tracking branch 'origin/master'

Conflicts:
	js/cs598.js
Change index.html
Add category in result page
Merge remote-tracking branch 'origin/master'

Conflicts:
	css/cs598-1.css
change show-graph photo
Merge remote-tracking branch 'origin/master'