var gcMode = "";
var pausedMode = "";
var oButtons = window.parent.parent.frames[2].document;

function setImg(cName,cImg) {
  if(cName!="") {
    var oImg = oButtons.getElementsByName(cName)[0];
    oImg.src = oImg.src.substr(0,oImg.src.length-5)+cImg+".gif";
  }
}

function clkEvnt(cMode) {
  if (cMode=="s") {
    if (gcMode=="f" || gcMode=="b") {
      pausedMode = gcMode;
      setButton(cMode);
      setPause();
    } else
      if (gcMode=="s" && pausedMode!="")
        clkEvnt(pausedMode);
  } else {
    setButton(cMode);
    if (cMode=="b") {
      setLeft();
      fScrollLeft(autoInterval);
    } else
    if (cMode=="f") {
      setRight();
      fScrollRight(autoInterval);
    }
  }
}

function dwnEvnt(cMode) {
  setButton(cMode);
  if (cMode=="bb") {
    setLeft();
    fScrollLeft(manualInterval);
  } else
  if (cMode=="ff") {
    setRight();
    fScrollRight(manualInterval);
  }
}

function upEvnt(cMode) {
  if (cMode==gcMode) {
    setButton("");
    if (cMode=="bb") {
      leftStop();
    } else
    if (cMode=="ff") {
      rightStop();
    }
  }
}

function ovrEvnt(cMode) {
  if (gcMode!=cMode) {
    setImg(cMode,"2");
  }
}

function outEvnt(cMode) {
  if (cMode=="ff" || cMode=="bb") {
    upEvnt(cMode);
  }
  if (cMode!=gcMode) {
    setImg(cMode,"1");
  }
}

function setButton(cMode) {
  if (gcMode!=cMode) {
    setImg(gcMode,"1");
    setImg(cMode,"3");
    gcMode = cMode;
  }
}