Loading pictures

When you first load a page, is there a script to load pictures in a specific order? I could use timeline, but I was wondering if there is some another way.

Thank you for your time.

there is a way:

you can load a picture in browser's buffer using:

var img1=new Image
img1.srv="path/youpic.jpg"

You need to declare a var. for every picture you wanna load before page. then you put all this in your head tag.

Is using a var script better than using a timeline?