var TimeToFade = 500.0;

var url = "";
function fade(eid, sendUrl) {
	url = sendUrl;

	var element = document.getElementById(eid);
	if (element == null)
		return;
	element.style.display = "inline";
	if (element.FadeState == null) {
		if (element.style.opacity == null
        || element.style.opacity == ''
        || element.style.opacity == '1') {
			element.FadeState = 2;
		}
		else {
			
			element.style.left = - element.style.width / 2 + "px"
			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("animateFadeTop(" + new Date().getTime() + ",'" + eid + "')", 33);
	}
}


function animateFadeTop(lastTick, eid) {
	var curTick = new Date().getTime();
	var elapsedTicks = curTick - lastTick;

	var element = document.getElementById(eid);
	element.style.zIndex = 100;
	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;
		element.style.zIndex = element.style.opacity == "0" ? "-100" : "100";
		element.style.display = element.style.opacity == "0" ? "none" : "inline";
		if (element.style.opacity == "0")
			window.location = url
		
		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("animateFadeTop(" + curTick + ",'" + eid + "')", 33);
}

function fadeNoChange(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.style.left = -element.style.width / 2 + "px"
			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("animateFadeTopNoChange(" + new Date().getTime() + ",'" + eid + "')", 33);
	}
}


function animateFadeTopNoChange(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;
		element.style.zIndex = element.style.opacity == "0" ? "-100" : "100";
		
		
		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("animateFadeTop(" + curTick + ",'" + eid + "')", 33);
}