//begin artist fade

var tiles_array = new Array("artists00", "artists01", "artists02");
var tiles_pointer = Math.floor(Math.random()*(tiles_array.length - 1)) + 1;
var fade_timeout_time = 50;
var wait = 3000;

function inittiles() {
	// fade in/out tiles.
	if(tiles_pointer%tiles_array.length == 0) {
   		tiles_pointer = 0;
		for(i = 1; i < tiles_array.length-1; i++)
		{
//			alert("hiding:  tiles_"+tiles_array[i]);
			setOpacity(document.getElementById(tiles_array[i]), 0);
		}
		
	}

	lyrId = tiles_array[tiles_pointer];
	lyr = document.getElementById(lyrId);
	// setOpacity(lyr, 0);
	lyr.style.visibility = 'visible';
	if(tiles_pointer == 0) {
//		alert("fadeOut: tiles_"+tiles_array[tiles_array.length-1]);
		fadeOut(tiles_array[tiles_array.length-1], 100);
	} else {
//		alert("fadeIn: "+lyrId);
    	fadeIn(lyrId,0);
	}
	
	tiles_pointer++;
//	alert("pointer is " + tiles_pointer);
	var tim = setTimeout("inittiles()", wait);
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", fade_timeout_time);
    }
  }
}

function fadeOut(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >= 0) {
      setOpacity(obj, opacity);
      opacity -= 10;
      window.setTimeout("fadeOut('"+objId+"',"+opacity+")", fade_timeout_time);
    }
  }
}

function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}
// end artist fade

var writeDate;
now = new Date;
month = new Array("January","February","March","April","May","June","July","August","September","October","November","December");
writeDate =  (month[now.getMonth()] + " " + now.getDate() + ", " + now.getFullYear() );

function openWindow(url,w,h) {
	var options='top=100,left=250,resizable=yes,scrollbars=yes,menubar=no,width='+w+',height='+h;
	window.open(url,'event',options);
}

// Mousever preload and variable settings					     
nav_studio = new Image(145,25); nav_studio.src = 'graphics/nav/nav_studio.gif';
nav_studio_on = new Image(145,25); nav_studio_on.src = 'graphics/nav/nav_studio_on.gif';

// Mouseover Function
function di(id,name) { if (document.images)  document.images[id].src=eval(name+".src"); }

function showLayer(id) 
{
	var div = returnDiv(id);
	div.visibility = "visible";
}

function hideLayer(id) 
{
        var div = returnDiv(id);
        div.visibility = "hidden";
//		previousLayer = "";
}
   
var tim;
var tim2;
var tim3;
var previousLayer = "";
var open_sub_layer = "";

function mouseOutOfLayer(id)
{
	if(id.indexOf("sub_") >= 0)
	{
//		alert("previousLayer = " + previousLayer);
		func = "hideLayer('"+previousLayer+"')";
		tim = setTimeout(func, 500);
		func = "hideLayer('"+id+"')";
		tim2 = setTimeout(func, 500);
	}
	else
	{
		if(open_sub_layer != "")
		{		
			func = "hideLayer('"+open_sub_layer+"')";
			tim2 = setTimeout(func, 500);
		}
		func = "hideLayer('"+id+"')";
		tim = setTimeout(func, 500);
	}
}
 
function mouseIntoLayer(id)
{
	clearTimeout(tim);
	clearTimeout(tim2);

	if(id.indexOf("sub_") >= 0)
	{  // we're mousing into a sub_layer
		if(open_sub_layer != id && open_sub_layer != "")
			hideLayer(open_sub_layer);
		clearTimeout(tim3);
		showLayer(id);
		showLayer(previousLayer);
		open_sub_layer = id;
	}
	else
	{  // we're just mousing into a regular layer

		if (open_sub_layer != "")
			hideLayer(open_sub_layer);
		if(previousLayer != id && previousLayer != "")
		{
			
			hideLayer(previousLayer);
		}
		showLayer(id);
		previousLayer = id;
	}
}

function returnDiv(id) {
	if (document.all) // IE
	{
		var div = document.all(id).style;
	}
	else if (document.layers) // NS4
	{
		var div = document.layers[id];
	}
	else if (document.getElementById) // NS6
	{
		var div = document.getElementById(id).style;
	}
	return div;
}