Interactive stacked bar chart?

I'm trying to create an interactive stacked bar chart. Where as items get checked it will change the chart.

• Item 1
• Item 2
• Item 3
• Item 4
• Item 5

(the bullet points being check boxes)

Initially none are checked and the stacked bar chart shows at 0% complete. Once the user checks one the stacked bar chart will show 20% on the left and 80%. (... two items checked 40% - 60% etc...)

Is this possible?