//FUNCTIES HELPTEKSTEN TONEN
function ShowHelp(layer) 
	{browser_showLayer(browser_getLayer(layer));}

function browser_showLayer(layer) 
	{layer.style.visibility = "visible";}

function browser_getLayer(layer) 
	{return document.getElementById(layer);}

//ALLE HELPTEKSTEN VERBERGEN
function HideAllpopup() 
{
  var aResults;
  aResults = document.getElementsByTagName("span");
  for(var i = 0; i<aResults.length; i++) 
  	{aResults[i].style.visibility = "hidden";}
}