dojox.io.scriptFrame uses an iframe for dojo.io.script requests.
dojox.io.scriptFrame is useful in some long-polling comet situations in Firefox and Opera. Those browsers execute scripts in DOM order, not network-receive order, so a long-polling script will block other dynamically appended scripts from running until it completes. By using an iframe for the dojo.io.script requests, this issue can be avoided.
TODO: how to use the component/class/method
// your code