Are Hidden Elements loaded at start?

I’m trying to add two repeaters to a single page that the user can switch between. One of the repeaters is hidden when the page loads. is there a way to make sure this hidden repeater is not loaded until it is shown. I’m asking because loading two repeaters when the page first loads slows the whole process down.

Ide also like to know this .

Matt, hidden elements do load. Check out this post ; it suggests a way to work with the issue regarding load times for repeaters.