function tickeropacity(id, opacStart, opacEnd, millisec) {


    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
} 

function ticker() {
	fadeTickerOut();
}

function getNewFact() {
	fact = facts[tick];
	tick++;
	if(tick>totalTickerItems) { tick=0; }
	
	f = document.getElementById("factTicker");
	f.innerHTML = fact;
}

function fadeTickerIn() {
	tickeropacity('factTicker', 0,100,2000);
}
function fadeTickerOut() {
	tickeropacity('factTicker', 100,0,2000);
	setTimeout(getNewFact,2000);
	setTimeout(fadeTickerIn,2000);
}