title: Can grapgviz be embeded into html page and dynamically corresponde to user's click?
body: <p>I am now looking for a drawing tools which is used in my website.This tool can draw relationship diagram and can correspond to user's click.For example ,this graph shows the partnership of employees in a company , each node of the graph represents a employee. When we left click on one of the nodes of the graph , the page will show  another figure,containing the details of this employee.
  Some one recommend graphviz, but it seems that graphviz can only draw pre-defined picture and cannot correspond to user's input.
  So , any ideas or recommendations?</p>