How to show different markers for current location and nearby locations in gmaps4rails

Hai guys,

Iam using gmaps4rails to show gmaps in my application.iam getting the
map
pointa right but iam unable to differentiate the current location and
nerby
locations in my map.my idea is to use different markers for two
locations
i did it in the following way but it didnt worked for me

my controller

def profile
@googlemaplocation=Location.
find_by_id(“#{params[:clinic_id]}”)

@json1 = @googlemaplocation.to_gmaps4rails do |locations, marker|

marker.picture({
:picture =>
http://www.google.com/mapfiles/dd-start.png”,
:width => 32,
:height => 32
})
end

@[email protected](10)
@json2= @neargooglemaplocation.to_gmaps4rails do |locations, marker|

marker.picture({
:picture =>
http://www.google.com/mapfiles/dd-start.png”,
:width => 32,
:height => 32
})
end

@json = (JSON.parse(@json1) + JSON.parse(@json2)).to_json

end

my view

<%= gmaps(:markers => { :data => @json } ) %>

what should i do if i want to display two different markers on the same
map

Thanks & Regards
Hari Krishna