var fadeInterval = 5750;
var fadeSpeed = 650;
var currentRot = 1;
	
setTimeout("fadeOut()", fadeInterval); 

function setOpacity(level) {
	var element= document.getElementById('rot');
	element.style.filter = "alpha(opacity="+level*100+")";
	element.style.opacity = level;
	element.style.MozOpacity = level;
	element.style.KhtmlOpacity = level;
	if (level>0.95) /* IE anti-aliasing 'bug' */
		element.style.removeAttribute('filter');
}

function fadeIn(){
	document.getElementById('rot_rub').innerHTML = arrRotRub[currentRot];
	document.getElementById('rot_txt').innerHTML = arrRotTxt[currentRot];
	currentRot = (currentRot + 1) % arrRotRub.length;
	for (i = 0; i <= 1; i = i + 0.05)
		setTimeout("setOpacity(" + i + ")", i * fadeSpeed);
	setTimeout("fadeOut()", fadeSpeed+fadeInterval);
}

function fadeOut() {
	for (i = 0; i <= 1; i = i + 0.05)
		setTimeout("setOpacity(" + (1 - i) + ")", i * fadeSpeed);
	setTimeout("fadeIn()", fadeSpeed);
}