Eggs, eggs everywhere. Whats a girl to do?

Hi all. This is my first real post on this forum.. I'm looking for some help with some mysterious eggs that have been appearing today. I don't have any experience with eggs, other than snail eggs.
First let me tell you the species that reside in this tank. A couple cory cats, zebra danios and glowlight tetras. A small tank, but its my husbands first. We've had it up and running for about 6 months now. This is the first time I've ever seen eggs in the tank. This morning I spotted 40 eggs on one side of the glass. I looked all around and didn't see any others. Before I posted this I looked around again and saw more eggs in three other locations in the tank. One on the opposite side of the glass, others on a fake large leaf plant and a few on a rock. I wish I could spot who was laying them, but I haven't yet caught them. Any inkling as to who may be doing it? Also, what do I do now? Like I said, I've never had them before, so I don't know what to do. It would be great to have some little ones. Please give me a shove in the right direction if you would.
Thanks!
T

Ps: I am noticing one of my cats is being very active. Unusual since they typically hide and are lumbering. Culprit?

Thanks for the quick responses.
Any recommendations to make sure some of them have a chance at making it? Remove the plant and rock that are covered in eggs? Safe guard them some how?

Any idea how long it takes for them to hatch?

:thm: Thanks for the info Dangerdoll. I'm liking this site already. I appreciate the help.
The majority of the eggs are close together on one end of the tank. I was thinking about getting a divider to section off that area. I want to make sure the cats are done laying eggs though. I'm not sure how long their mating goes on for. They sure are active little things. :

Cory cat it is! I just saw my Cory lay a cluster of eggs on a leaf. What a site to see! That was awesome.