var TimeToFade = 250.0;

fade = function(eid){
	var element = document.getElementById(eid);
	
	if(element == null){
		return;
	}

	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;
		element.style.display = (element.FadeState == 2) ? 'none' : 'block';
		setTimeout("animateFade(" + new Date().getTime() + ",'" + eid + "')", 33);
	}
}//fin fade


animateFade = function(lastTick, eid){
	var curTick = new Date().getTime();
	var elapsedTicks = curTick - lastTick;
 
	var element = document.getElementById(eid);
 
	if(element.FadeTimeLeft <= elapsedTicks){
		element.style.display = (element.FadeState == 1) ? 'block' : 'none';
		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;
		return;
	}
 
	element.FadeTimeLeft -= elapsedTicks;
	var newOpVal = element.FadeTimeLeft/TimeToFade;
	
	if(element.FadeState == 1){
		newOpVal = 1 - newOpVal;
	}

	//newOpVal = newOpVal * 1;	
	element.style.opacity = newOpVal;
	element.style.filter = 'alpha(opacity=' + (newOpVal * 100) + ')';
	setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}//fin animateFade