// Source from: bbcpersian.com
// Control parameters
var theCharacterTimeout = 50;
var theStoryTimeout     = 3000;
var theWidgetOne        = "-";
var theWidgetTwo        = " ";
var theWidgetNone       = "";
var theItemCount = theSummaries.length;
var NS6=(document.getElementById && !document.all) ? true : false;

// Ticker startup

function startTicker()
{

        // Define run time values
        theCurrentStory     = -1;
        theCurrentLength    = 0;
        // Locate base objects
        if (document.getElementById) {
                        runTheTicker();
                 }
        else {
            document.write("<style>.ticki{display:none;}.ticko{border:0px; padding:0px;}</style>");
            return true;
        }
}
// Ticker main run loop
function runTheTicker()
{
        var myTimeout;
        // Go for the next story data block
        if(theCurrentLength == 0)
        {
                theCurrentStory++;
                theCurrentStory      = theCurrentStory % theItemCount;
                theStorySummary      = theSummaries[theCurrentStory];
                theTargetLink        = theSiteLinks[theCurrentStory];
        }

        var textTitle = theStorySummary.substring(0,theCurrentLength) + whatWidget();

        if (theTargetLink ) {

                if (NS6) {
        document.getElementById("theTicker").innerHTML  = '<a href="'+ theTargetLink +'" target="_blank" class="tick">'+textTitle+'</a>';
                                 }
                else {
        document.all.theTicker.innerHTML  = '<a href="'+ theTargetLink +'" target="_blank" class="tick">'+textTitle+'</a>';
                                }
                                                }
        else {
                if (NS6) {
        document.getElementById("theTicker").innerHTML = '<span class="tickertext">'+textTitle+'</span>';
                                }
                else {
        document.all.theTicker.innerHTML  = '<span dir=rtl" class="tickertext">'+textTitle+'</span>';
                                }
        }

        // Modify the length for the substring and define the timer
        if(theCurrentLength != theStorySummary.length)
        {
                theCurrentLength++;
                myTimeout = theCharacterTimeout;
        }
        else
        {
                theCurrentLength = 0;
                myTimeout = theStoryTimeout;
        }
        // Call up the next cycle of the ticker
        setTimeout("runTheTicker()", myTimeout);
}

// Widget generator
function whatWidget()
{
        if(theCurrentLength == theStorySummary.length)
        {
                return theWidgetNone;
        }

        if((theCurrentLength % 2) == 1)
        {
                return theWidgetOne;
        }
        else
        {
                return theWidgetTwo;
        }
}

startTicker();