var time2hide=300;
var lastsubnav=0;
var subnav2hide=0;
var timeoutID;

function nav_show(i,isright)
{
	if(lastsubnav){
		document.getElementById('subnav'+lastsubnav).style.display='none';
		document.getElementById('navlink'+lastsubnav).className='';
	}
	subnav2hide=false;
	
	if(sn=document.getElementById('subnav'+i))
	{
		lastsubnav=i;
		o=document.getElementById('navlink'+i);
		o.className='jssubnavon';
		
		// menu vpravo
		if(isright) sn.style.left=o.offsetLeft-o.offsetWidth-2+'px';
		else sn.style.left=o.offsetLeft+o.offsetWidth+'px';
		
		sn.style.top=o.offsetTop+'px';
		sn.style.display='block';
	}
}

function nav_hide(){subnav2hide=true;timeoutID=window.setTimeout("hide()",time2hide);}

function hide(){
	window.clearTimeout(timeoutID);
	if(subnav2hide){
		document.getElementById('subnav'+lastsubnav).style.display='none';
		document.getElementById('navlink'+lastsubnav).className='';
	}
}

function nav_keep(){subnav2hide=false}