Flex price range widget

gistfile1.txt

similar to zillow

one UI "dropdown" that shows the current range:
"Any price" (when neither set)
"$800-$1000" (when both set)
"$800+" (min only)
"Up to $1000" (max only)

When dropped down, has two text fields for min and max.
Puts focus in min field.
When either field has focus, display a list of common/suggested prices as links underneath
(left aligned text for min; right aligned for max).
We can use the classic range values for this:
  Any (when showing min options)
  $500 (possibly append "+" to each $ value when showing min options?)
  $700
  $900
  $1100
  $1300
  $1500
  $2000
  $2500
  $3000
  $4000
  $5000
  Any (when showing max options)
  
Clicking a link fills the appropriate text field.
After a min value is set (either by link or text entry), put focus in max field (and show max suggestions, 
filtering out suggestions <= min).
After a max value is set (either by link or text entry), close the "dropdown".