Using city names to put marker on the map instead of using Latng and Long in javascript mapping library? -

I am working on the mapping project, and I want to use the city name to place my markers on the map I am There are some JavaScript libraries that really make good maps like Raphaelz, and Javitormap. However, I have seen these libraries with latee and long values. Can I use the name of the city to identify the location on the map instead, and keep my marker?

You can change the name of a city into a latitude / geo coding: