function showSY(bln1){
  if(bln1){
    document.getElementById('SY100').style.visibility='visible';
    if (!!document.all) {
      var iframeEl = document.createElement("IFRAME");
      iframeEl.frameBorder = 0;
      iframeEl.src = "javascript:false;";
      iframeEl.style.display = "none";
      iframeEl.style.position = "absolute";
      iframeEl.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)";
      document.getElementById('SY100').iframeEl = document.getElementById('SY100').parentNode.insertBefore(iframeEl, document.getElementById('SY100'));
      if (document.getElementById('SY100').iframeEl != null){
        document.getElementById('SY100').iframeEl.style.right    = 0;
        document.getElementById('SY100').iframeEl.style.top     = document.getElementById('SY100').style.top;
        document.getElementById('SY100').iframeEl.style.width   = document.getElementById('SY100').offsetWidth + "px";
        document.getElementById('SY100').iframeEl.style.height  = document.getElementById('SY100').offsetHeight + "px";
        document.getElementById('SY100').iframeEl.style.display = "";
      }
    }
  }else{
    document.getElementById('SY100').style.visibility='hidden';
    if (!!document.all) {
      if (document.getElementById('SY100').iframeEl != null){
        document.getElementById('SY100').iframeEl.style.display = "none";
      }
    }
  }
}