Need a report which can be call from opportunity - online version

Hi ,

I want a report (it may be SSRS report or any other using Fetch XML ) in which I can pass the opportunity ID. as currently I have created a SSRS report but in that I am unable to pass the Opportunity id, For this I have given a dropdown of opportunity on the report. but I do not need this.

as the report is to be call from the opprtunity so need the way to pass the Id silently to the report.

Have serched the net but did not got solution for online version with SSRS fetch XMl.

Is thsi possible to acchive this using any other REPORTING tool.

Thanks