$(function() {

//cache the ticker
var ticker = $("#ticker");

//wrap dt:dd pairs in divs
ticker.children().filter("dt").each(function() {

var dt = $(this),
container = $("<div>");

dt.next().appendTo(container);
dt.prependTo(container);

container.appendTo(ticker);
});

//hide the scrollbar
ticker.css("overflow", "hidden");

//animator function
function animator(currentItem) {

//work out new anim duration
var distance = currentItem.height();
duration = (distance + parseInt(currentItem.css("marginTop"))) / 0.010;

//animate the first child of the ticker
currentItem.animate({ marginTop: -distance }, duration, "linear", function() {

//move current item to the bottom
currentItem.appendTo(currentItem.parent()).css("marginTop", 0);

//recurse
animator(currentItem.parent().children(":first"));
}); 
};

//start the ticker
animator(ticker.children(":first"));

//set mouseenter
ticker.mouseenter(function() {

//stop current animation
ticker.children().stop();

});

//set mouseleave
ticker.mouseleave(function() {

//resume animation
animator(ticker.children(":first"));

});
});