function showSubMenu(id)
{
	var submenu = document.getElementById(id);
	if (submenu)
		submenu.style.display = 'block';
}

function hideSubMenu(id)
{
	var submenu = document.getElementById(id);
	if (submenu)
		submenu.style.display = 'none';
}

function showLangs(id)
{
	var submenu = document.getElementById(id);
	if (submenu)
		submenu.style.display = 'block';
}

function hideLangs(id)
{
	var submenu = document.getElementById(id);
	if (submenu)
		submenu.style.display = 'none';
}

function openatt(){
	document.getElementById('overlayintro').style.display = 'block';
	document.getElementById('overlayintro2').style.display = 'block';
}

function closeatt(){
	document.getElementById('overlayintro').style.display = 'none';
	document.getElementById('overlayintro2').style.display = 'none';
}

function SetCookie(){
var nameEQ = "bvbint=";
temp = true;
var ca = document.cookie.split(';');
if (getCookie('bvbint'))
	temp=false;

	if (temp){
		var day = new Date()
		/*day.setTime(day.getTime()+10800000);*/
		/*document.cookie = "bvbint=yes; expires=" + day.toGMTString();*/
		document.cookie = "bvbint=yes; ";
		openatt();
	}else{
		closeatt();
	}
}

function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1; 
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    } 
  }
return "";
}

function FV(fld){
 	field=document.getElementById(fld);
 	var ret = eval('field.value');
 	return ret;
}