function navAkt ()
{	
	var nav = getID("nav");
	var navA = getTag("a",nav);	
	var navHref = getHref(nav);
	var delExp;
	for (t=0;t<navHref.length;t++)
	{
		delExp = navHref[t].indexOf(".");
		navHref[t] = navHref[t].substr(0,delExp);
	}	
	var lok = window.location.href;	
	for (q=0;q<navHref.length;q++)
		{
			var comp = lok.search(navHref[q]);			
			if (comp > 0)
  				 {   
   					navA[q].className = ("akt"); 					
   				 }
		}			
		var lastSlash = lok.lastIndexOf("/");			
		if (lastSlash == lok.length-1)
			{
				navA[0].className = ("akt");				
			}		
}