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.co2{ background:#028fbc}
</style>
<script type="text/javascript">
window.onload = function() {
var oUl = document.getElementById("nav");
var aLi = oUl.getElementsByTagName("li");
var i = 0;
for (i = 0; i < aLi.length; i++) {
aLi[i].timer = null;
aLi[i].speed = 0;
aLi[i].onmouseover = function() {
startMove(this, 250);
};
aLi[i].onmouseout = function() {
startMove2(this, 100);
};
}
};
function startMove(obj, iTarget) {
if (obj.timer) {
clearInterval(obj.timer);
}
obj.timer = setInterval(function() {
doMove(obj, iTarget);
}, 30)
};
function doMove(obj, iTarget) {
obj.speed += 3;
if (Math.abs(iTarget - obj.offsetWidth) < 1 && Math.abs(obj.speed) < 1) {
clearInterval(obj.timer);
obj.timer = null;
}
else {
if (obj.offsetWidth + obj.speed >= iTarget) {
obj.speed *= -0.7;
obj.style.width = iTarget + "px";
}
else {
obj.style.width = obj.offsetWidth + obj.speed + "px";
}
}
};
function startMove2(obj, iTarget) {
if (obj.timer) {
clearInterval(obj.timer);
}
obj.timer = setInterval(function() {
doMove2(obj, iTarget);
}, 30)
};
function doMove2(obj, iTarget) {
obj.speed -= 3;
if (Math.abs(iTarget - obj.offsetWidth) < 1 && Math.abs(obj.speed) < 1) {
clearInterval(obj.timer);
obj.timer = null;
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