// News rotation script

var lastNum      = 0;
var articleCount = 0;

var nImage    = new Array();
var nHeadline = new Array();
var nTeaser   = new Array();
var nLink     = new Array();
var nTarget   = new Array();

var imgPath = imgRoot + "/graphics/";


function switchNews(nNum) {

  if (nNum == 'p') {
    // Increment next value or reset count and start at 1
    if (lastNum > 0) {
      nNum = lastNum - 1;
    } else {
      nNum = ((lastNum - 1) + articleCount);
    }

    lastNum = nNum;

    displayNews("boxNewsStory",nImage[nNum],nHeadline[nNum],nTeaser[nNum],nLink[nNum],nTarget[nNum]);
    swButton(nNum);

  } else if (nNum == 'n') {
    // Increment next value or reset count and start at 1

    if (lastNum < (articleCount-1)) {
      nNum = lastNum + 1;
    } else {
      nNum = ((lastNum + 1) - articleCount);
    }

    lastNum = nNum;

    displayNews("boxNewsStory",nImage[nNum],nHeadline[nNum],nTeaser[nNum],nLink[nNum],nTarget[nNum]);
    swButton(nNum);

  } else if ((nNum == 0) || (nNum == 1) || (nNum == 2) || (nNum == 3) || (nNum == 4)) {
    nNum = (!nNum) ? 1 : nNum+1;
    nNum = nNum - 1;
    lastNum = nNum;

    displayNews("boxNewsStory",nImage[nNum],nHeadline[nNum],nTeaser[nNum],nLink[nNum],nTarget[nNum]);
    swButton(nNum);

  } else {
    nNum = (!nNum) ? 0 : 0;
    displayNews("boxNewsStory",nImage[nNum],nHeadline[nNum],nTeaser[nNum],nLink[nNum],nTarget[nNum]);
    swButton(nNum);
  }

}


function setCount(count) {

  articleCount = count;

}


function swButton(bNum) {

  bNum = bNum + 1;
  document.newsbp.src = imgPath + "button_back.gif";
  if (document.newsb0) {
    document.newsb0.src = (bNum == 1) ? imgPath + "button_1_on.gif" : imgPath + "button_1_off.gif";
  }
  if (document.newsb1) {
    document.newsb1.src = (bNum == 2) ? imgPath + "button_2_on.gif" : imgPath + "button_2_off.gif";
  }
  if (document.newsb2) {
    document.newsb2.src = (bNum == 3) ? imgPath + "button_3_on.gif" : imgPath + "button_3_off.gif";
  }
  if (document.newsb3) {
    document.newsb3.src = (bNum == 4) ? imgPath + "button_4_on.gif" : imgPath + "button_4_off.gif";
    //alert('document.newsb3.src: ' + document.newsb3.src);
  }
  if (document.newsb4) {
    document.newsb4.src = (bNum == 5) ? imgPath + "button_5_on.gif" : imgPath + "button_5_off.gif";
    //alert('document.newsb4.src: ' + document.newsb4.src);
  }
  
  document.newsbn.src = imgPath + "button_forward.gif";

}


function displayNews(nID,nI,nH,nT,nL,nTar) {
	
  var linkTarget = (nTar == null) ? '_self' : nTar;
	
  var divContent = document.getElementById(nID);
  var divHTML = '';
  divHTML += '<div class="tsImage"><img src="' + nI + '" border="0"></div>';
  divHTML += '<div class="tsContent">';
  divHTML += '<span class="tsHeadline">' + nH + '</span>';
  divHTML += ' <div class="tsTeaser">' + nT + ' <a href="' + nL + '" target="' + linkTarget + '">...' + moreLabel + '</a></div>';
  divHTML += '</div>';
  // Draw content to layer
  divContent.innerHTML = divHTML;
  //alert(divHTML);
} // End function

// Auto rotate controls    

var state=1;
var timeDelayRun = 500;
var timeDelayRotate = 11000;
var a;
var b;
var c;


// YOU ARE HERE ---- try to clear every time out via a function
function clearAll () {

  window.clearTimeout(a);
  window.clearTimeout(b);
  window.clearTimeout(c);

} // end function


function startstop() {

  if (state == 0)  {
    state = 1;
    document.images.playbtn.src = imgPath + "button_pause.gif";
    a = window.setTimeout("switchNews('n');rotater();", timeDelayRun);
  } else {
    state = 0;
    document.images.playbtn.src = imgPath + "button_play.gif";
    clearAll();
  }

} // end function


function stop() {

  state = 0;
  document.images.playbtn.src = imgPath + "button_play.gif";
  clearAll();

} // end function


function rotater() {

  if (state == 1)  {
    document.images.playbtn.src = imgPath + "button_pause.gif";
    b = window.setTimeout("switchNews('n');", timeDelayRotate);
    c = window.setTimeout("rotater();", timeDelayRotate);
  } else {
    document.images.playbtn.src = imgPath + "button_play.gif";
    clearAll();
  }

} // end function