Below you will see a text box into which you can type as much HTML or JavaScript (or a mixture of both) as you like. When you want to view the result, just click on the button below. The result will appear in its own window, which you can close at any point. N.B. I have only tested this page using Internet Explorer. I can't be certain that it works using Netscape Navigator!
Don't forget to close the window when you have finished with it!
Feel free to update the HTML/JavaScript as much as you like, and just click on the button to update the small window. Displaying images is, I admit, a little tricky. Since the images you will want to display will be in all likelihood be on your hard disc, you should specify the full path name to the images:
<IMG SRC="c:/My Documents/mypic.jpg">
Of course, there is nothing to stop you for displaying other images from different sites: