Finally added cookie support
For now, 4 settings in view options are saved in the cookie when you click the Save button in the Search form.
That saves those 4 view options in the cookie. That is if you have the cookies enabled in general, or if you enable them for zknives.com domain.
I promise, the only thing that's in the cookie is the values of 4 fields. You can easily examine that btw.
So, after clicking save button those settings will be restored in the search form next time you load the chart.
However, the saved settings are overrideable from the form and from the query string.
In other words, those settings are in effect unless you change them in the search form or specify different value in the query string.