MDX Get Time when Min or Max Occured

Hi everyone

My post is some what simliar to this post titled "Find date of running total max and min" But its getting done in SQL there. I want to do it in MDX.

how can I compute a calculated measure for showing me the datetime when the max value occured and when teh min value occured. Like I have an aggregation function Max that gives me the max value but I want to know what time did that max occured.

Help please

Thanks

-Sarah