Put object in droppable area on page load

Put object in droppable area on page load

I’m implementing a photo manager like the one on this website (  https://jqueryui.com/droppable/#photo-manager ).

Upon dragging an image to a droppable area I set this image to be the default one in the database. This works fine. What I can't figure out is how to have this default image show up in the droppable area upon page load. Do I have to do this in asp.net or can I call a jquery function after the page has loaded?

Any ideas would be welcome.