//masthead css assignmnet
var rotatorCSS;
var rotator_array = new Array("rotator.css");
var rotator_pointer = Math.floor(Math.random()*(rotator_array.length));
rotatorCSS =  ("<link rel=\"stylesheet\" href=\"/css/" + rotator_array[rotator_pointer] + "\" type=\"text/css\">");

//begin artist fade

var Rtiles_array = new Array("rotator01", "rotator02");
var Rtiles_pointer = Math.floor(Math.random()*(Rtiles_array.length - 1)) + 1;
var Rfade_timeout_time = 50;
var Rwait = 15000;

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

//	alert(Rtiles_pointer);
	lyrId = Rtiles_array[Rtiles_pointer];
	lyr = document.getElementById(lyrId);
	// setOpacity(lyr, 0);
	lyr.style.visibility = 'visible';
	if(Rtiles_pointer == 0) {
//		alert("fadeOut: tiles_"+Rtiles_array[Rtiles_array.length-1]);
		fadeOut(Rtiles_array[Rtiles_array.length-1], 100);
	} else {
//		alert("fadeIn: "+lyrId);
    	fadeIn(lyrId,0);
	}
	
	Rtiles_pointer++;
	var tim = setTimeout("rotatortiles()", Rwait);
}

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;
}