/*
Handy Effects that I copied from the INTERNETS.
What an amazing and modenr age we live in!

*/

var TimeToFade = 300.0; // milliseconds

/* function doFade() {
	return;
} */

function doFade(eid) {
  var element = document.getElementById(eid);
  
  if(element == null) return;
  // if(element.style.visibility == 'visible') return;
  
  // this makes it a FADE IN ONLY
	// element.style.visibility = 'visible';
	// element.style.opacity = 0;
	// element.style.display = 'block';
	// element.FadeState = -2;
  
  if(element.FadeState == null) {
    if(element.style.opacity == null || element.style.opacity == '' || element.style.opacity == '1') {
      element.FadeState = 2;
    } else {
      element.FadeState = -2;
    }
  } 
   
  if(element.FadeState == 1 || element.FadeState == -1) {
    element.FadeState = element.FadeState == 1 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade - element.FadeTimeLeft;
  } else {
    element.FadeState = element.FadeState == 2 ? -1 : 1;
	
    element.FadeTimeLeft = TimeToFade;
    setTimeout("animateFade(" + new Date().getTime() + ",'" + eid + "')", 33);
  }  
}

function animateFade(lastTick, eid) {  
  var curTick = new Date().getTime();
  var elapsedTicks = curTick - lastTick;
  var element = document.getElementById(eid);
 
  if(element.FadeTimeLeft <= elapsedTicks) {
    element.style.opacity = element.FadeState == 1 ? '1' : '0';
    // element.style.filter = 'alpha(opacity = ' + (element.FadeState == 1 ? '100' : '0') + ')';
    element.FadeState = element.FadeState == 1 ? 2 : -2;
	
	if(element.style.opacity == 0) {
	LWAPW_HideSessidInput();  
  	}
	
    return;
  }
 
  element.FadeTimeLeft -= elapsedTicks;
  var newOpVal = element.FadeTimeLeft/TimeToFade;
  
  if(element.FadeState == 1) newOpVal = 1 - newOpVal;

  element.style.opacity = newOpVal;
  //element.style.filter = 'alpha(opacity = ' + (newOpVal*100) + ')';
  
  if(element.style.opacity == 0) {
	LWAPW_HideSessidInput();  
  }
  
  setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}