how to change the marker color on google map ??

[#1]

Hello All ,

I am new to qlikview .

My requiremnet is obtaining different marker color for different speed in country,

Used the following expression but its nt showing desired result rather reflecting asbelow:

I have used the following expression :

=If(Match([Speed],100,200,300),

          'http://maps.google.com/mapfiles/ms/icons/blue-dot.png',

          If(Match([Speed],400,500),

          'http://maps.google.com/mapfiles/ms/icons/green-dot.png',

          'http://maps.google.com/mapfiles/ms/icons/red-dot.png'))

Please find the attached and rectify where i am wrong.:)