I was acutally just curious, how do you get it so when you connect to a website a pop up comes up and prompts the user if they want to speak with someone for assistance(if yes then CLICK HERE and if no then [close])?

it's probably a bit of javscript that sets a div to display that uses "position: static" to appear above the rest of the site. When the user clicks 'close' more javascript sets that div to "display: none;" to get rid of it. You could also set a cookie so you know if the user has been to the site already and not show the popup if they've already seen it.