multiple welcome files in wb. xml

Hi all,
we have a tag in the web.xml as "welcome-file-list" and under it we give the names of few welcome files.. My question is why more than welcome files.. i heard the answer as if it cannot find the one then it will search for the others in top to bottom approach. That is at first it will search for 1st one and then the second one and then the third one and so on... i hope its correct but what if all the resources mentioned there are available???

Please reply..

Thanks and Regards,
Abhishek.

Then the first one will be selected for use as welcome file.