网页特效之文字来回出现

　　脚本说明:
第一步:把如下代码加入＜head＞区域中
＜SCRIPT LANGUAGE="JavaScript"＞
＜!-- Begin
var Message="欢迎光临魔域http://www.w12345.com精彩JavaScript集锦!!";
var place=1;
function scrollIn() {
window.status=Message.substring(0, place);
if (place ＞= Message.length) {
place=1;
window.setTimeout("scrollOut()",300);
} else {
place++;
window.setTimeout("scrollIn()",50);
}
}
function scrollOut() {
window.status=Message.substring(place, Message.length);
if (place ＞= Message.length) {
place=1;
window.setTimeout("scrollIn()", 100);
} else {
place++;
window.setTimeout("scrollOut()", 50);
}
}
// End --＞
＜/SCRIPT＞

第二步:把＜body＞中的内容改为:
＜body bgcolor="#ffffff" onLoad="scrollIn()"＞