changing URL for web reference metho call on the fly - web dev exp

[Heidi]

I've got a web reference in my Web Developer Express app.

I've got six urls that have the same web methods but have different data.

I want to be able to make the same query against each of the servers in one
page using my one webreference.

I can see that the URL is in the web.config - but don't see how I can get my
webreference to use something I want instead of the value in the web.config.

Would it be a simple matter to do something like this pseudo code:

using myWebservice;
..
..
..
for each server
do the call (thisURL)
..
..
..
do the call (thisURL)
{
myWebservice.url = thisURL
myWebserviceResponse = myWebservice.someMethod();
....
}

or do you have other suggestions?

Since my code isn't particularly long, it might be easier to just make six
different webreferences and six different procedures, but it feels so ugly...
thanks!