function change_lang(lang){ 
	var the_url = window.location.href;
  if(the_url.match("lang=")){
		the_url = the_url.replace("&lang=en","");
		the_url = the_url.replace("&lang=ga","");
	}
  if(the_url.indexOf("?") < 1){
  	the_url = the_url + "?lang=" + lang;
  }else{
    the_url = the_url + "&lang=" + lang;    
  }
  window.location.href = the_url
}
  
function getURLParam(strParamName){
	var strReturn = "";
	var strHref = window.location.href;
  if ( strHref.indexOf("?") > -1 ){
  	var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
    var aQueryString = strQueryString.split("&");
    for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
    	if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
      	var aParam = aQueryString[iParam].split("=");
        strReturn = aParam[1];
        break;
      }
    }
  }
  return strReturn;
}
  
function set_active_tab(){
/*
	var lselect = document.getElementById("langauge_selecter");
	if(lselect){
		var all_tabs = lselect.getElementsByTagName("li");
		for(i = 0; i < all_tabs.length; i++){
			all_tabs[i].className = "inactive";
		}
	  if(window.location.href.indexOf("lang=") > 1){
	  	the_tab = document.getElementById(getURLParam("lang")+"_tab");
		}else{
			// default to english:
			the_tab = document.getElementById("en_tab");
		}
		the_tab.className = 'active';
	}
	*/
}