var swapped_id = 'none';
var swapped_src = 'none';

function swap_image(id) {
	var new_src = 'images/nav_'+id+'_down.jpg';
	var old_src = 'images/nav_'+id+'_up.jpg';
	var d,e;
	if (swapped_id != 'none') {
		d = document.getElementById(swapped_id);
		d.src = swapped_src;	
	}
		e = document.getElementById(id);
		e.src = new_src;
		swapped_id = id;
		swapped_src = old_src;
		swap_menu(id+"_menu");
}

function swap_home() {
	var h = document.getElementById("home");
	h.src = "images/nav_home_up.jpg";
}

function swap_menu(id) {
	var e = document.getElementById("home_menu");
	e.style.display = "none";
	e = document.getElementById("drinks_menu");
	e.style.display = "none";
	e = document.getElementById("events_menu");
	e.style.display = "none";
	e = document.getElementById("parties_menu");
	e.style.display = "none";
	e = document.getElementById("about_menu");
	e.style.display = "none";
	e = document.getElementById("contact_menu");
	e.style.display = "none";
	
	var d = document.getElementById(id);
	d.style.display = "block";
	if (id != "home_menu")
	{
		var f = document.getElementById("submenu");
		f.className = "submenu_active";
	}
	else
	{
		var f = document.getElementById("submenu");
		f.className = "submenu_inactive";
	}

}

function clear_menu ()
{
	setTimeout ( swap_menu('home_menu'), 4000 );
	
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}