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// set speed of banner (pause in milliseconds between characters) var speed = 100 // decrease value to increase speed (must be positive) // set pause between completion of message and beginning of following message var pause = 1000 // increase value to increase pause // set initial values var timerID = null var bannerRunning = false // create global array var ar = new Array() // assign the strings to the array's elements ar[0] = "Welcome to EDCAR AUTOMOTIVE......ONLINE!" ar[1] = "Serving the automotive aftermarket for over 20 years," ar[2] = "stay tuned for more," ar[3] = "and thanks for dropping by." // set index of first message to be displayed first var currentMessage = 0 // set index of last character to be displayed first var offset = 0 // stop the banner if it is currently running function stopBanner() { // if banner is currently running if (bannerRunning) // stop the banner clearTimeout(timerID) // timer is now stopped bannerRunning = false } // start the banner function startBanner() { // make sure the banner is stopped stopBanner() // start the banner from the current position showBanner() } // type-in the current message function showBanner() { // assign current message to variable var text = ar[currentMessage] // if current message has not finished being displayed if (offset < text.length) { // if last character of current message is a space if (text.charAt(offset) == " ") // skip the current character offset++ // assign the up-to-date to-be-displayed substring // second argument of method accepts index of last character plus one var partialMessage = text.substring(0, offset + 1) // display partial message in status bar window.status = partialMessage // increment index of last character to be displayed offset++ // IE sometimes has trouble with "++offset" // recursive call after specified time timerID = setTimeout("showBanner()", speed) // banner is running bannerRunning = true } else { // reset offset offset = 0 // increment subscript (index) of current message currentMessage++ // if subscript of current message is out of range if (currentMessage == ar.length) // wrap around (start from beginning) currentMessage = 0 // recursive call after specified time timerID = setTimeout("showBanner()", pause) // banner is running bannerRunning = true } }
