A system and process for launching a messaging window such as a chat bot, especially on a mobile platform, such a smart phones and tablets, is described. The process begins with displaying a web page with webpage contents in a browser window with a primary top bar and a display window. In response to receiving user input to scroll the webpage contents of the browser window are scrolled in a horizontal direction, a vertical direction, or a combination thereof. Also, a secondary top bar, as a previously invisible graphical element within the webpage contents of the web page is now displayed in substantial position and with the substantially the same appearance to look like the primary the top bar. In response to receiving user input in the vicinity of the secondary top bar, the system triggers a presentation of a messaging window or chat window.