SHARE - Event handler for page refresh and back button

    <input type="hidden" id="refreshed" value="no"/>
    <script type="text/javascript">
      onload=function(){
        var e=document.getElementById("refreshed");
        if(getCookie('location_url')==location.href){
          e.value="no";
        }
        setTimeout('setCookie(\'location_url\',location.href);', 100)
        if(e.value=="no"){ //page loaded on the first time
          e.value="yes";
        }else{ //page refreshed or back to this page
          e.value="no";
          //run your code for the event here
          e.value="yes";
        }
      }
      onkeypress=function(event){ //page refreshed
        if(event.keyCode==116){
          var e=document.getElementById("refreshed");
          e.value="no";
        }
      }
      onkeydown=function(event){ //page refreshed
        if(event.ctrlKey && event.keyCode == 82){
          var e=document.getElementById("refreshed");
          e.value="no";
        }
      }
    </script>

SHARE - SpotCrime feed api integration

One of my client want to feed in the spotcrime map to one page for each his community site.
Each community have info about country, state/province, city, zipcode/postal code.
We can use this info for search it on google map.

First we need add this to your view

<%= javascript_include_tag('spotcrime/maps.js', 'spotcrime/main.js', 'spotcrime/spotcrime.js') %>


add this to view

<script type="text/javascript">
      /* <[[CDATA] */
      function initializeMap() {
        SpotCrime.newsEmbed(
        "map", //DOM that you want to add map
        [<%= @lat %>, <%= @lng %>, 14], //latitude, longitude, zoom
        [600,473], //width, height map
      "<b><%= community.zipcode %><\/b>",
      "<p style='font-size: smaller;'>Recent incident reports, MPD dispatches, and local crime news in the <%= community.zipcode %> zip code area.<\/p><br\/><br\/>");
      }
      /* ]> */
</script>

add this to your view

<div id="map"></div>

we need to get latitude and longitude for our community

add this to your controller

    require 'open-uri'
    require 'openssl'

    url = "http://maps.googleapis.com/maps/api/geocode/xml?address=#{((community.address.to_s+' ')+(community.city.to_s+' ' if community.city)+(community.state.to_s+' ' if community.state)+(community.zipcode.to_s if community.zipcode)).gsub(' ', '+')}&sensor=true"
    xml = open(url).read
    hash = Hash.from_xml(xml)
    if hash['GeocodeResponse'] and hash['GeocodeResponse']['result'] and hash['GeocodeResponse']['result']['geometry'] and hash['GeocodeResponse']['result']['geometry']['location']
      @lat= hash['GeocodeResponse']['result']['geometry']['location']['lat'] if hash['GeocodeResponse']['result']['geometry']['location']['lat']
      @lng= hash['GeocodeResponse']['result']['geometry']['location']['lng'] if hash['GeocodeResponse']['result']['geometry']['location']['lng']
    end

for the js file you can ask me about it.