s10_03.htm

来自「老师课件」· HTM 代码 · 共 39 行

HTM

39 行

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>

<HEAD>
<META name="vs_targetSchema" content="HTML 4.0">
<META name="GENERATOR" content="Microsoft FrontPage 5.0">
<META name="ProgId" content="FrontPage.Editor.Document">
<TITLE>文字上下跳动</TITLE>
<META http-equiv="Content-Type" content="text/html; charset=gb2312">
</HEAD>

<BODY onload="PulseTo(10);">

<SCRIPT language="JavaScript">
<!--

var direction = "down"; //确定移动方向

function PulseTo(top)
{//跳至位置top
	pulse_text.style.top = top;

	if(top>document.body.offsetHeight-30) direction = "up";//向上
	if(top<30) direction = "down";//向下
	if(direction =="down") 
		step = 4;
	else
	    step = -4;
	setTimeout('PulseTo('+(top+step)+')', 10);
}
//-->
</SCRIPT>
<P id="pulse_text" style="position: absolute; top: 20; width: 400; height: 29; left: 176">
<B>JavaScript网页特效</B></P>

</BODY>

</HTML>

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s10_03.htm

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