How to get the alerts in report studio

[Sarayucog]

Hi Gurus,

I have a reprot with 5 prompts. In that 3 prompts are mandatory prompts.

My problem is if user without selecting any mandatory prompt clicked on Finish button an alert should come like Please select the mandatory prompts.

I think we can achieve this by using Java script, but I don't know the scripting. Please post me the java script code and pls let me know how to assign this java script code to the object in the report.

[AussiePete2011]

http://public.dhe.ibm.com/software/dw/dm/cognos/reporting/scripting_techniques/BI-Restrict_Tree_Prompt_Selection_with_JavaScript.pdf