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控制文字上下移动的特效(做网页时很有用啊)

王朝html/css/js·作者佚名  2006-11-24
窄屏简体版  字體: |||超大  

有什么问题请到<a href='/bbs/forums.php?fid=21'>论坛</a>中发表<br>

<!-- http://www.webjx.com/ -->

<!-- http://bbs.webjx.com/ -->

<!--要完成此效果把如下代码加入到<body>区域中-->

<SCRIPT LANGUAGE="JavaScript">

<!-- Begin

var msg = "This page requires version 4 or later of\n Netscape Navigator or Internet Explorer"

var dyn = (document.layers || document.all) ? true : alert(msg);

var nav = (document.layers) ? true : false;

var iex = (document.all) ? true : false;

var lft = 10; // (window.screen.width/2);

var pos = 10; // initial top position

var stp = 10; // step increment size

var spd = 150; // speed of increment

var upr = -390; // upper limiter

var lwr = 100; // lower limiter

var tim; // timer variable

function scroll_up() {

if(pos > upr) pos -= stp;

do_scroll(pos);

tim = setTimeout("scroll_up()", spd);

}

function scroll_dn() {

if(pos < lwr) pos += stp;

do_scroll(pos);

tim = setTimeout("scroll_dn()", spd);

}

function do_scroll(pos) {

if(iex) document.all.divTxt.style.top = pos;

if(nav) document.divTxt.top = pos;

}

function no_scroll() {

clearTimeout(tim);

}

var divTop_content="";

if(iex) document.write('<DIV ID="divTop" STYLE="position:absolute; top:0; left:'+lft+'; width:300; height:100; background-color:white; z-index:3">'+divTop_content+'</DIV>');

if(nav) document.write('<LAYER ID="divTop" position="absolute" top="0" left="'+lft+'" width="300" height="100" bgcolor="white" z-index="3">'+divTop_content+'</LAYER>');

var divBtm_content =('<HR><TABLE BORDER="0" WIDTH="100%"><TR><TD ALIGN="left"><A HREF="javascript://webjx.com" ONMOUSEOVER="scroll_up()" ONMOUSEOUT="no_scroll()">SCROLL DOWN</A></TD><TD ALIGN="right"><A HREF="javascript://webjx.com" ONMOUSEOVER="scroll_dn()" ONMOUSEOUT="no_scroll()">SCROLL UP</A></TD></TR></TABLE>');

if(iex) document.write('<DIV ID="divBtm" STYLE="position:absolute; top:350; left:'+lft+'; width:300; height:800; background-color:white; z-index:2">'+divBtm_content+'</DIV>');

if(nav) document.write('<LAYER ID="divBtm" position="absolute" top="350" left="'+lft+'" width="300" height="800" bgcolor="white" z-index="2">'+divBtm_content+'</LAYER>');

var divTxt_content = ('<b>These are ACTUAL letters to "Dear Abby"</b><hr><P><br>Dear Abby, I have a man I never could trust. He cheats so much on me I\'m not even sure this baby I\'m carrying is his.<P><br>Dear Abby, I am a twenty-three year old liberated woman who has been on the pill for two years. It\'s getting expensive and I think my boyfriend should share half the cost, but I don\'t know him well enough to discuss money with him.<P>Dear Abby, I suspected that my husband had been fooling around, and when I confronted him with the evidence he denied everything and said it would never happen again.<P>Dear Abby, Our son writes that he is taking Judo. Why would a boy who was raised in a good Christian home turn against his own?<P>Dear Abby, I joined the Navy to see the world. I\'ve seen it. Now how do I get out?<P>Dear Abby, I was married to Bill for three months and I didn\'t know he drank until one night he came home sober.<P>Dear Abby, My forty-year-old son has been paying a psychiatrist $50 an hour every week for two-and-a-half years. He must be crazy.<P>Dear Abby, I have always wanted to have my family history traced, but I can\'t afford to spend a lot of money to do it. Any suggestions? Signed, Sam Dear Sam, Yes. Run for public office.<P>');

if(iex) document.write('<DIV ID="divTxt" STYLE="position:absolute; top:100; left:'+lft+'; width:300; font-family:verdana; font-size:10pt; background-color:white; z-index:1">'+divTxt_content+'</DIV>');

if(nav) document.write('<LAYER ID="divTxt" position="absolute" top="100" left="'+lft+'" width="300" font-family="verdana" font-size="10pt" bgcolor="white" z-index="1">'+divTxt_content+'</LAYER>');

// End -->

</script>

[Ctrl+A 全部选择 提示:你可先修改部分代码,再按运行]

 
 
 
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