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a guest Nov 12th, 2019 70 Never
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  1. <div id = 'state'>
  2. <%= select_tag :state, options_for_select(us_states) %>
  3. </div>
  4. <br>
  5. <div id = 'prov' >
  6. <%= select_tag :provinces, options_for_select(canadian_provinces) %>
  7. </div>
  8. <br>
  9. <div id = 'country'>
  10.  
  11. <%= select_tag  :country, options_for_select(country), :onchange => "myFunction()" %>
  12. </div>
  13.  
  14.  
  15. <script>
  16. function myFunction() {$(this).find(":selected").val();
  17.  
  18. if (this.val = 'CAN')
  19.   var y = document.getElementById("prov");
  20.   if (y.style.display === "none") {
  21.     y.style.display = "block";
  22.   } else {
  23.     y.style.display = "none";
  24.   }
  25.   }
  26.            
  27.   else
  28.   {
  29.          
  30.   var x = document.getElementById("state");
  31.   if (x.style.display === "none") {
  32.     x.style.display = "block";
  33.   } else {
  34.     x.style.display = "none";
  35.   }
  36.   }
  37.   }
  38.  
  39.  
  40. </script>
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