function fncToggle(parText) {

  if (parText.style.display == "none") {

     parText.style.display = "";

  } else {

     parText.style.display = "none";

  }

}



function fncHideSpan() {

    var tag_names = "";

    var span_texts = document.all.tags("SPAN");

    for (i=0; i<span_texts.length; i++) 

        span_texts(i).style.display = "none";

}