splitting the url based on condition

Hi Team,

I need to show the data from different tables and among them url is one fof the column. Actually i am splitting the column (that is url column) by "/" .but some times if "/" is not present in the url ,it is showing the column as blank.

My issue is splitting the url based on some condition .

I need to split the url based on the top most right one.if that is not present it should not split.

example 1: http://microsoft.com/en-us
in this case result should show the en-us

example 2: http://microsoft.com
in thi case result should show complete url like http://microsoft.com

Thanks in advance.