function showHide(elementID) {
    var desc = null;

    if (document.getElementById) {
      desc = document.getElementById("cnt_desc_" + elementID);
    } else if (document.all) {
      desc = document.all["cnt_desc_" + elementID];
    } else if (document.layers) {
      desc = document.layers["cnt_desc_" + elementID];
    }

    if (desc) {
      if (desc.style.display == 'none') {
        expand(elementID);
      } else {
        collapse(elementID);
      }
    }
  }

  function expand(elementID) {
    var cnt = null;
    var desc = null;
    var icon = null;

    if (document.getElementById) {
      cnt = document.getElementById("cnt_" + elementID);
      desc = document.getElementById("cnt_desc_" + elementID);
      icon = document.getElementById("cnt_icon_" + elementID);
    } else if (document.all) {
      cnt = document.all["cnt_" + elementID];
      desc = document.all["cnt_desc_" + elementID];
      icon = document.all["cnt_icon_" + elementID];
    } else if (document.layers) {
      cnt = document.layers["cnt_" + elementID];
      desc = document.layers["cnt_desc_" + elementID];
      icon = document.layers["cnt_icon_" + elementID];
    }

    if (desc.style.display == 'none') {
      cnt.style.backgroundColor = '';
      cnt.style.border = '';
      cnt.style.padding = '0px';
      cnt.style.marginBottom = '0px';
      desc.style.display = 'block';
    }
  }

  function collapse(elementID) {
    var cnt = null;
    var desc = null;

    if (document.getElementById) {
      cnt = document.getElementById("cnt_" + elementID);
      desc = document.getElementById("cnt_desc_" + elementID);
      icon = document.getElementById("cnt_icon_" + elementID);
    } else if (document.all) {
      cnt = document.all["cnt_" + elementID];
      desc = document.all["cnt_desc_" + elementID];
      icon = document.all["cnt_icon_" + elementID];
    } else if (document.layers) {
      cnt = document.layers["cnt_" + elementID];
      desc = document.layers["cnt_desc_" + elementID];
      icon = document.layers["cnt_icon_" + elementID];
    }

    if (desc.style.display != 'none') {
      cnt.style.backgroundColor = '';
      cnt.style.border = '';
      cnt.style.padding = '0px';
      cnt.style.marginBottom = '0px';
      desc.style.display = 'none';
    }
  }