[jQuery] peculiar behaviour of clone

[brown.33]

Hi,

I am new to jquery. I used clone for both prepend and prependTo. For
prependTo, it is working fine.

But if we apply prepend for $j("#begin_947").clone().prepend($j
('#end_947')), it is deleting the entire end_947 element.
Can somebody explain me, why it is happening like this.

Thanks in advance