Check function modules in Workflows

Hi,

The requirement is that, I need to trigger a workflow based on a condition ,if the condition is true then WF 1 has to be triggerred if not then WF2 has to be trigerred, the requirement is that i need to implement check FMs for this, can anybody send me sample code on how to do this? and give me the step by step approach of how to configure this in the transaction SWETYPV and SWB_COND. please its urgent.

Regards

Narendiran Rathinavelu