var browserType;

if (document.layers) {browserType = "nn4"}
if (document.all) {browserType = "ie"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) {
   browserType= "gecko"
}


function showHide()
{
	
	 if (browserType == "gecko" )
     document.poppedLayer =eval('document.getElementById("ReferAFriendContainer")');
  else if (browserType == "ie")
     document.poppedLayer =eval('document.getElementById("ReferAFriendContainer")');
  else
     document.poppedLayer =eval('document.layers["ReferAFriendContainer"]');
	
	if (document.poppedLayer.style.visibility=="hidden")
	{
		document.poppedLayer.style.visibility = "visible";	
	}else{
		
		document.poppedLayer.style.visibility = "hidden";	
	}
	
	}