function switchPicRelated() {
  if (document.getElementById('relWrap')) {
    var relWrapImg = document.getElementById('relWrap').getElementsByTagName('IMG');

    if (relWrapImg.length == 0) {
      document.getElementById('relWrap').parentNode.parentNode.innerHTML = "<div class='whiteBlock'></div>"

    }


    for (var i = 0; i < relWrapImg.length; i++) {
      if (relWrapImg[i].className == "Related_BuyButton_IMG") {
        relWrapImg[i].src = "/images/design/source/buybtn_fpi.gif";
      }
    }
  }
  if (document.getElementById('othWrap')) {
    var relWrapImg = document.getElementById('othWrap').getElementsByTagName('IMG');
    for (var i = 0; i < relWrapImg.length; i++) {
      if (relWrapImg[i].className == "Related_BuyButton_IMG") {
        relWrapImg[i].src = "/images/design/source/buybtn_fpi.gif";
      }
    }
  }
}