remember select TimeRange

[liguobao]

if web refresh , TimeRange will reset to "Last 15 minutes". But we expect the web remember last select.

[wu-sheng]

Don't refresh the browser, click refresh button. It works at my place.

[liguobao]

but if I refresh the browser, the select lost.

I think the web should remember last select.

We can write select-value to cookie .