How do I zoom in/out on a vector graphic image using HTML?

I’m using Dreamweaver to create a web page. The page will have a flowchart that is too big to fit onto the monitor all at once. I could leave it full size, and require the use of scroll bars, but it is hard to visualize the entire flow using that method. I would like to know if I can draw the flowchart in Adobe Illustrator and save as a vector graphic, and then have a web page with zoom in/out capability. I did find that I could create a Visio flowchart and SaveAs Webpage. It allows me to zoom in and out, but I don’t know how to duplicate that effect using Dreamweaver.