var curImg = 0;
var timerId = -1;
var intervalm = 3000;
var interval = intervalm;
var isPlaying = 1;

function replaceNum()
{
  var input = SHOWINGSTRING;
  var output = input;
  var idx = output.indexOf("%slideNum");
  if (idx > -1) {
    output = input.substring(0, idx);
    output += eval(curImg+1);
    output += input.substr(idx+9);
  }
  return output;
}

function imgLoadNotify()
{
  if (isPlaying == 1)
    setTimers();
}

function changeSlide()
{

  if (timerId != -1) {
    clearTimers();
  }

var strs = "<table><tr><td align=center><font color='#CC0000'>"
var stre = "</font></td></tr></table>"
var imagecmt = new Array(
"2004上海国际防雷论坛暨展览会现场",
"2004上海国际防雷论坛暨展览会现场",
"2004上海国际防雷论坛暨展览会现场",
"2004上海国际防雷论坛暨展览会现场",
"2004上海国际防雷论坛暨展览会论坛现场",
"2004上海国际防雷论坛暨展览会论坛现场",
"2004上海国际防雷论坛暨展览会论坛现场",
"2004上海国际防雷论坛暨展览会论坛现场",
"2004上海国际防雷论坛暨展览会主题活动<br>防雷技术交流晚宴－－浦江夜游",
"2004上海国际防雷论坛暨展览会主题活动<br>防雷技术交流晚宴－－浦江夜游",
"2004上海国际防雷论坛暨展览会主题活动<br>防雷技术交流晚宴－－浦江夜游",
"2004上海国际防雷论坛暨展览会主题活动<br>防雷技术交流晚宴－－浦江夜游"
);
    var html = "<img src=" + imageSrcArray[curImg] + " alt=\"2004上海国际防雷论坛暨展览会图片集\"" +
      " border=1 onload=\"imgLoadNotify();\">" + strs + imagecmt[curImg] + stre;

      document.all.imgp.innerHTML = html;
}

function forward()
{
  curImg++;
  if (curImg == numImgs)
    curImg = 0;
  changeSlide();
}

function rewind()
{
  curImg--;
  if (curImg < 0)
      curImg = numImgs - 1;
  changeSlide();
}

function stop()
{
  clearTimers();

  isPlaying = 0;

}

function play()
{
  setTimers();
  startShow();
}

function startShow()
{
  isPlaying = 1;
}

function setTimers()
{
  if (timerId == -1)
    timerId = window.setInterval('forward();', interval);
}

function clearTimers()
{
  window.clearInterval(timerId);
  timerId = -1;
}