I need an easier way to add photos to my blog.

I would like to try using the blog feature with my site. I need to post some pictures of my work but when I click on the insert photo icon it puts up a screen to prompt me for my pictures. It requires a photo url. My photos that I want to use are stored on my computer and do not have a url. I just want to take them right from my hard drive just like I do when I use my blogger.com blog but I don't see a way to do that. Can anybody help me out with this?