var marqueeContent=new Array(); //滚动主题
var marqueeInterval=new Array(); //定义一些常用而且要经常用到的变量
var marqueeId=0;
var marqueeDelay=4000;
var marqueeHeight=60;
function initMarquee() {
var line1 = '';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line1 = line1 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line2 = line2 + '
';
line3 = line3 + '
';
line3 = line3 + '
'+str+'
';
marqueeId++;
marqueeInterval[0]=setInterval("startMarquee()",marqueeDelay);
}
function startMarquee() {
var str=marqueeContent[marqueeId];
marqueeId++;
if(marqueeId>=marqueeContent.length) marqueeId=0;
if(marqueeBox.childNodes.length==1) {
var nextLine=document.createElement('DIV');
nextLine.innerHTML=str;
marqueeBox.appendChild(nextLine);
}else {
marqueeBox.childNodes[0].innerHTML=str;
marqueeBox.appendChild(marqueeBox.childNodes[0]);
marqueeBox.scrollTop=0;
}
clearInterval(marqueeInterval[1]);
marqueeInterval[1]=setInterval("scrollMarquee()",10);
}
function scrollMarquee() {
marqueeBox.scrollTop++;
if(marqueeBox.scrollTop%marqueeHeight==marqueeHeight){
clearInterval(marqueeInterval[1]);
}
}