AJAX is a great tool for building some really slick applications, but it has one limitation has made me ignore it for a number of things that I have wanted to do. After speaking with Chris Toohey and stealing getting inspiration from some code that he had, I have come up with a simple agent to allow me to get data from other domains. The agent is incredibly simple, but I have no idea what kind of impact this will have on the server, so test thoroughly before you implement it in your environment.

First, create an new LS agent and set the run-time security level to 2. Allow Restricted Operations. The agent can be as complex as you want it to be, but below is all that is necessary:

	Dim s As New NotesSession
	Dim doc as NotesDocument
	Dim xml As Variant
	Dim temp As String
	
	Set doc = session.DocumentContext
	temp = StrRight(doc.Query_String_Decoded(0),"url=")
	Set xml = CreateObject("Microsoft.XMLHTTP")
	xml.Open "GET", temp , False
	xml.Send 
	Print "Content-Type:text/html"
	Print "Cache-Control:NoCache"		
	Print Cstr(xml.ResponseText)
	Set xml = nothing

Finally, you create an AJAX call on your page that calls the agent you created and pass the URL you want to retrieve as a query string parameter. That's all it takes to basically have one AJAX call access another AJAX call to get data from some other domain. Just to prove that my dogfood tastes good, I am using a version of this agent to retrieve my Bloglines Blog Roll on the right. Just click on the RSS icon to see the data retrieved via AJAX.