Referring the contents of root with out specifying the root directory name

Customer's question:

"Is there a way to reference the root of the webserver.  I want to create an index.html file when people click on http://peopebooks-test.xxxx.edu rather then http://peplebooks-test.xxxx.edu/ODLA.  I'm just usure as to where to place the file."

Here ODLA is the web root directory. Now customer wants to refer all the contents of the web root directory with out actually referring to the folder name.

Means if the URL is like this " http://peplebooks-test.xxxx.edu/ODLA" then customer wants to access the contents of this URL from this URL " http://peopebooks-test.xxxx.edu