How do you post your dragon cave eggs

Easiest way is to use a hatchery. There are several to choose from. Some ask for your username while others ask for your code. The code is a dragon's 4 letter or number sequence.

Example: dragoncave.net/view/CODE
Easiest way to get a code is the Get HTML/BBcode link at the top of your scroll. The code is already separated by egg's pic for use.