[support] path to images deep down in the filesystem

Hi, I would like to display images that are located in folder very/long/path/to/this/folder/images/ using <img src=...>, but without creating sym links in the current directory and without to retype the path everytime. Is there a way of saying the following: image_dir="very/long/path/to/this/folder/images/" and use it in <img src="image_dir/image_1.png" /> ? Thanks, michele