prevent selected= from being included in the HTML twice, making it ha…

…rder to choose between priority countries in some browsers

Signed-off-by: Michael Koziarski <michael@koziarski.com>

lib/country_select.rb

@@ -17,6 +17,10 @@ def country_options_for_select(selected = nil, priority_countries = nil)
         if priority_countries
           country_options += options_for_select(priority_countries, selected)
           country_options += "<option value=\"\" disabled=\"disabled\">-------------</option>\n"
+          # prevents selected from being included twice in the HTML which causes
+          # some browsers to select the second selected option (not priority)
+          # which makes it harder to select an alternative priority country
+          selected=nil if priority_countries.include?(selected)
         end
 
         return country_options + options_for_select(COUNTRIES, selected)