[OpenLayers-Users] How to preset a parameter into a callback function?

[Pedro Baracho]

In some part of my code I am sending multiple requests asynchronously to
some servers. The problem is: I need some information from the requests
(like server address and URL string) in order to process the responses and
these informations aren't available in the response parameter (which is
something like a GML). That being said, I think the best way is to preset
some parameters in the callback function when sending the requests.

I found this solution:
http://openlayers.org/pipermail/users/2009-March/010890.html which partially
explains OpenLayers.Function.bind() and gives another option of using the
scope to set the parameter.

The problem with these solutions is that I need the scope to be on the
current object AND set additional parameters. In other words, I CAN'T change
the scope, which means either I set these parameters inside the scope in
some sort of twisted temporary variables or I use some unknown method which
allows me to tell OpenLayers: "When calling the callback function, set these
parameters additionally to the response".

This is what I have:

for (i in servers) {
    OpenLayers.Request.issue({
        url: servers[i],
        headers: {...},
        params: {...}
        success: this.someFunction,
        scope: this
    });
}

This is what I need:

for (i in servers) {
    OpenLayers.Request.issue({
        url: servers[i],
        headers: {...},
        params: {...}
        success: this.someFunction(i, response), // preset parameter "i"
        scope: this
    });
}

Is OpenLayers.Function.bind() what I am looking for? If it is, how do I use
it? I didn't find any docs on it, on OL API.

Thanks in advance.
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