var newsTicker = {};

// elm, step, speed, delay, actual, timer
newsTicker.ticker = [];

newsTicker.init = function(elm, step, speed, delay) {
 if (elm && (elm.tagName == "UL") && document.getElementsByTagName) {
 if (isNaN(step)) {var step = 2};
 if (isNaN(speed)) {var speed = 25};
 if (isNaN(delay)) {var delay = 1000};

 var message = elm.getElementsByTagName("LI");
 for (var i = 0; i < message.length; i++) {
 message[i].style.left = 0 - message[i].offsetWidth + "px";
 }

 var tickerID = newsTicker.ticker.length;
 newsTicker.ticker[tickerID] = new Array(elm, step, speed, delay, message.length-1);

 newsTicker.roll(tickerID);

 return true;
 }
 return false;
}

newsTicker.roll = function(id) {
 if (!isNaN(id) && newsTicker.ticker[id]) {

 var ticker = newsTicker.ticker[id];
 var message = ticker[0].getElementsByTagName("li");
 var actualMessage = message[ticker[4]];

 if (parseInt(actualMessage.style.left) <= 0 - actualMessage.offsetWidth) {
 if (ticker[4] + 1 == message.length) {
 ticker[4] = 0;
 } else {
 ticker[4] = ticker[4] + 1;
 }
 actualMessage = message[ticker[4]];
 actualMessage.style.left = ticker[0].offsetWidth + (ticker[0].offsetWidth % ticker[1]);
 }

 actualMessage.style.left = parseInt(actualMessage.style.left) - ticker[1] + "px";

 ticker[5] = setTimeout("newsTicker.roll(" + id + ")", (parseInt(actualMessage.style.left) == 0) ? ticker[3] : ticker[2]);

 return true;
 }
 return false;
}