Download image after page load

Hi Folks,

Good day,

Am using image slider with click event using jquery. there are nearly 30 image.

**When i opened the site, the 30 images are downloaded and then the site opens. So that the page speed is very slow. **

My requirement is, The images are download only after site site opens.

I have tried lazyload jquery, but it is base on window scroll. I need for click event.

Please advice.

Thank You.

nguye van dung