//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 = 5000;

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);
		}
		
	}

//	alert(tiles_pointer);
	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++;
	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;
}

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);
}

//toggle
var openseat = "video1"; 
function toggleSeat(objectID) {
		if (objectID != openseat) {
			o = document.getElementById(objectID);
			o.style.display='block';
			if (openseat != "") {
				c = document.getElementById(openseat);
				c.style.display='none';
			}
		}
		openseat = objectID;
		return;
}