ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
v6 = (document.getElementById)? true:false

function showlayer(layerid)
  {
  if (ns4) document.layers[layerid].visibility = "show"
  else if (v6) document.getElementById(layerid).style.visibility = "visible";
  else if (ie4) document.all[layerid].style.visibility = "visible"
  }

function hidelayer(layerid)
  {
  if (ns4) document.layers[layerid].visibility = "hide"
  else if (v6) document.getElementById(layerid).style.visibility = "hidden";
  else if (ie4) document.all[layerid].style.visibility = "hidden"
  }

// Registration functions -> register_ajax.js
function passConfirm() {
	if ((document.getElementById('pass_input').value == document.getElementById('pass_conf_input').value) && document.getElementById('pass_input').value.length > 5) {
		document.getElementById('passValid').style.visibility = "visible";
	} else {
		document.getElementById('passValid').style.visibility = "hidden";
	}
}