打字效果

<SCRIPT language=J***Ascript>

// ------ 定义全局变量

var theNewsNum;

var theAddNum;

var totalNum;

var CurrentPosion=0;

var theCurrentNews;

var theCurrentLength;

var theNewsText;

var theTargetLink;

var theCharacterTimeout;

var theNewsTimeout;

var theBrowserVersion;

var theWidgetOne;

var theWidgetTwo;

var theSpaceFiller;

var theLeadString;

var theNewsState;

function startTicker(){

// ------ 设置初始数值

theCharacterTimeout = 50;//字符间隔时间

theNewsTimeout = 2000;//新闻间隔时间

theWidgetOne = "_";//新闻前面下标符1

theWidgetTwo = "-";//新闻前面下标符

theNewsState = 1;

theNewsNum = document.getElementById("incoming").children.AllNews.children.length;//新闻总条数

theAddNum = document.getElementById("incoming").children.AddNews.children.length;//补充条数

totalNum =theNewsNum+theAddNum;

theCurrentNews = 0;

theCurrentLength = 0;

theLeadString = " ";

theSpaceFiller = " ";

runTheTicker();

}

// --- 基础函数

function runTheTicker(){

if(theNewsState == 1){

if(CurrentPosion<theNewsNum){

setupNextNews();

}

else{

setupAddNews();

}

CurrentPosion++;

if(CurrentPosion>=totalNum||CurrentPosion>=1){

CurrentPosion=0;//最多条数不超过num_gun条

}

}

if(theCurrentLength != theNewsText.length){

drawNews();

}

else{

closeOutNews();

}

}

// --- 跳转下一条新闻

function setupNextNews(){

theNewsState = 0;

theCurrentNewstheCurrentNews = theCurrentNews % theNewsNum;

theNewsText = document.getElementById("AllNews").children[theCurrentNews].children.Summary.innerText;

theTargetLink = document.getElementById("AllNews").children[theCurrentNews].children.Summary.children[0].href;

theCurrentLength = 0;

document.all.hottext.href = theTargetLink;

theCurrentNews++;

}

function setupAddNews() {

theNewsState = 0;

theCurrentNewstheCurrentNews = theCurrentNews % theAddNum;

theNewsText = document.getElementById("AllNews").children[theCurrentNews].children.Summary.innerText;

theTargetLink = document.getElementById("AllNews").children[theCurrentNews].children.Summary.children[0].href;

theCurrentLength = 0;

document.all.hottext.href = theTargetLink;

theCurrentNews++;

}

// --- 滚动新闻

function drawNews(){

var myWidget;

if((theCurrentLength % 2) == 1){

myWidget = theWidgetOne;

}

else{

myWidget = theWidgetTwo;

}

document.all.hottext.innerHTML = theLeadString + theNewsText.substring(0,theCurrentLength) + myWidget + theSpaceFiller;

theCurrentLength++;

setTimeout("runTheTicker()", theCharacterTimeout);

}

// --- 结束新闻循环

function closeOutNews(){

document.all.hottext.innerHTML = theLeadString + theNewsText + theSpaceFiller;

theNewsState = 1;

setTimeout("runTheTicker()", theNewsTimeout);

}

window.onload=startTicker;

</SCRIPT>

<a href="" id="hottext"></a>

<div id=incoming style="DISPLAY: none;float:left">

<div id=AllNews >

<div id=0>

<div id="Summary" style="border:1px solid red">

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<a href="http://p.dvbbs.net/" target="_blank"><font color="red"><b>动网论坛PHP官方站点</b></font></a> </div>

<div id=NewsLink ></div>

</div>

</div>

<div id=AddNews height="25"></div>

</div>