I need to display bar graph based on a given year. So far i added one selection field,  in this field i listed a years.

By selecting this field i want to display the graph under the tab. So i customized the graph view inside the tab. when i select the year, it will load the graph based on the given year. So i tried the "on change" method, using this method i update the year field in the table, but it doesn't load the graph. So i think to load graph by using js but i don't know how to do this. Can anyone help me, to how to do this.??