// JavaScript Document


function showlayer(layer){
 var myLayer = document.getElementById(layer);
  if(myLayer.style.display=="none" || myLayer.style.display==""){
   myLayer.style.display="block";
  } else { 
   myLayer.style.display="none";
  } 
}

function LangShift(addon) {
 if (lang_param=="") {
  addon = ('lang=' + addon);
  window.location.search  += addon;
 } else {
  amount1 = lang_param.length;
  amount2 = window.location.href.length;
  amountToKeep = (amount2-amount1);
  baseUrl = window.location.href.substr(0,amountToKeep);
  newUrl = baseUrl += addon;
  window.location.href = newUrl;
 }
}

function gup( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
}

var lang_param = gup( 'lang' )