Creating a Target Node

Hi,

I have a sinario where i need to create the Target Node when the Source Node is equel to some constant

Eg:

Source

<Node1> it is 0 to unbounded

<Number>

<Code>

</Node1>

If Number = x and Code = y then target node is to be created other wise no.

I have used it with node function "creatif" but when we use with creatif it is testing only once but node1 will be populated unbounded.

Is that we need to write any UDF...if so can you provide the code...

Thanks

Amaresh