//TWO PARTS TO SCROLLING BANNER
//PART 1
//===========================================

//<SCRIPT LANGUAGE="JavaScript">

//<!--

// Copyright (c) 1996 Tomer Shiran. All rights reserved.
// Permission given to use this script provided that the copyright
// notice remains as is. Additional scripts and information are 
// available at http://www.geocities.com/SiliconValley/9000/

// set speed of banner (pause in milliseconds between characters)
var speed = 150 // 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] = "Benvindo ao site sobre Francesinhas"
ar[1] = "Um pouco de história nunca fez mal a ninguém :)"
ar[2] = "Feito pelo grupo 3 de Multimédia e Educação -- CC -> FCUP"
ar[3] = "Do croque-monsieur à francesinha, uma odisseia"
ar[4] = "Francesinha, só para homens... Os rapazes comam uma tosta-mista"
ar[5] = "Receitas... há muitas."
ar[6] = "O segredo do molho é....  segredo, a alma do negócio"
ar[7] = "E quem bate palmas, come francesinhas"
ar[8] = "Normal ou vegetariana? Eis a questão"
ar[9] = "Francesinha, quando se gosta, é para sempre"
// 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
        }
}

// -->

//</SCRIPT>