When the patch starts, the browser enters a DOM inspection mode and mousing over a DOM element highlights the node. Clicking on a node writes the element's data (its innerHTML value if it's a text element or the binary data if it's an image) as a sound file and the file is then loaded in a quicktime player in the patch. The sounds can then be triggered using OSC messages. While a DOM element is "playing", the browser scrolls to and highlights the element with a thick black border.