function toggletext(x) {
  if (document.all) {
    if (document.all[x].innerHTML == 'Click here to view listings') {
      document.all[x].innerHTML = 'Click here to close listings';
    } else if (document.all[x].innerHTML == 'Click here to close listings') {
      document.all[x].innerHTML = 'Click here to view listings';
    } 
  } else {
    if (document.getElementById(x).innerHTML == 'Click here to view listings') {
      document.getElementById(x).innerHTML = 'Click here to close listings';
    } else if (document.getElementById(x).innerHTML == 'Click here to close listings') {
      document.getElementById(x).innerHTML = 'Click here to view listings';
    }
  }
}

function expand(x) {
  if (document.all) {
    if (document.all[x].style.display == 'none') {
      document.all[x].style.display = ''
    } else if (document.all[x].style.display == '') {
      document.all[x].style.display = 'none';
    }
  } else {
    if (document.getElementById(x).style.display == 'none') {
      document.getElementById(x).style.display = ''
    } else if (document.getElementById(x).style.display == '') {
      document.getElementById(x).style.display = 'none';
    }
  }
}