var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose; 


function meretezo() {
  var owidth, lmargin

  if (parseInt(navigator.appVersion)>3) {
    if (navigator.appName.indexOf("Microsoft")!=-1)  owidth = document.body.offsetWidth
    else owidth = window.innerWidth
    
  }
  lmargin = (owidth-1220)/2
  if(lmargin<0) lmargin=0
  document.getElementById('alap').style.marginLeft=lmargin+'px'
}