Executing multi-valued web service calls from javascript

I'm currently working hard on a web based business system for a theatre agency here in Denmark. Client-side business logic communicates through web service calls with server-side business logic.

I'm using the web service proxies that Matthias Hertels AJAX Engine generates, but I was unable to use ajax.Start to execute multi-valued calls.

Maybe I overlooked something? :) Anyway, I came up with a fix for it...

This an example of a multi-valued call:

  ...
  var Add = {
    delay: 200,
    prepare: function() { return [34, 23]; },
    call: proxies.AddService.Add,
    finish: function (p) {
      alert("Sum: " + p);
    },
    onException: proxies.alertException
  };

  ajax.Start(Add);
  ...

I changed some lines in Ajax.js. After this:

      ...      
      // start the call
      ca.call.func = ajax.Finsh;
      ca.call.onException = ajax.Exception;

I added this:

      // multi-valued call (new)
      if ((typeof(data)=="object") && (data!=null) && data.length) {
        ca.args = new Object();
        var aArg = new Array();
        for (var i = 0; i<data.length; i++) {
          ca.args["a" + i] = data[i];
          aArg[aArg.length] = "a" + i;
        }
        with (ca.args) {
          eval("ca.call(" + aArg.join(",") + ")");
        }
      }
      // single-valued call
      else { 
        ca.call(data);
      }      
      ...

And it worked. I hope you can use this.