The XMLHttp transport is the default transport.

It works well in most cases, but it cannot transfer files, cannot work across domains (ie, cannot connect to another site than the current page), and doesn't work with the file:// protocol.

Example usage:

<script type="text/javascript">
   dojo.require("dojo.io.*");

   function mySubmit() {
     dojo.io.bind ({
       url: 'server.cfm',
       handler: callBack,
      formNode: dojo.byId('myForm')
     });
   }
   function callBack(type, data, evt) {
      dojo.byId('result').innerHTML = data;
   }
</script>