var TimeToFade = 300.0;
function fade(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;
		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;
		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) + ')';
	setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}
// Thanks to http://www.switchonthecode.com for this code


function fadeOnIntro(what) {
	document.getElementById(what).FadeState = -2;
	fade(what);
}