用JavaScript技术为制作动态鼠标指针_软件_科技时代


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用JavaScript技术为制作动态鼠标指针

http://tech.sina.com.cn 2000/09/28 软件世界王玉春

　　常上网冲浪的朋友在浏览网页时经常会看到用JavaScript脚本实现的各种文字特效，除了用它做文字特效恐怕别的功能就很少见了。本文将介绍用JavaScript技术为您的网页制作充满动感和个性的鼠标指针。

　　将以下代码加入网页的<BODY>区中，您即可看到鼠标箭头周围几个不停运动的彩色小球，并且您的鼠标指到哪里，彩色小球就跟到哪里！

<script language="JavaScript">
function YY_Layerfx(yyleft,yytop,yyfnx,yyfny,yydiv,yybilder,yyloop,yyto,yycnt,yystep) { //v1.2
//
if ((document.layers)||(document.all)){
with (Math) {yynextx= eval(yyfnx)}
with (Math) {yynexty= eval(yyfny)}
yycnt=(yyloop && yycnt>=yystep*yybilder)?0:yycnt+yystep;
if (document.layers){
eval(yydiv+".top="+(yynexty+yytop))
eval(yydiv+".left="+(yynextx+yyleft))
}
if (document.all){
eval("yydiv=yydiv.replace(/.layers/gi, '.all')");
eval(yydiv+".style.pixelTop="+(yynexty+yytop));
eval(yydiv+".style.pixelLeft="+(yynextx+yyleft));
}
argStr='YY_Layerfx('+yyleft+','+yytop+',"'+yyfnx+'","'+yyfny+'","'+yydiv+'",'+yybilder+','+yyloop+','+yyto+','+yycnt+','+yystep+')';
if (yycnt<=yystep*yybilder){eval(yydiv+".yyto=setTimeout(argStr,yyto)");}
}

}
function YY_Mousetrace(evnt) { //
if (yyns4)
{if (evnt.pageX) {yy_ml=evnt.pageX; yy_mt=evnt.pageY;} }
else{
yy_ml=(event.clientX + document.body.scrollLeft);
yy_mt=(event.clientY + document.body.scrollTop);
}
if (yy_tracescript)eval(yy_tracescript)
}
</script>
<div id="yyd0"
style="BACKGROUND-COLOR: #19636c; BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-RIGHT: #000000 1px; BORDER-TOP: #000000 1px; CLIP: rect(0px 3px 3px 0px); HEIGHT: 3px; LEFT: 10px; POSITION: absolute; TOP: 50px; WIDTH: 3px; Z-INDEX: 1; layer-background-color: #19636c"></div><div
id="yyd1"
style="BACKGROUND-COLOR: #708574; BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-RIGHT: #000000 1px; BORDER-TOP: #000000 1px; CLIP: rect(0px 3px 3px 0px); HEIGHT: 3px; LEFT: 20px; POSITION: absolute; TOP: 50px; WIDTH: 3px; Z-INDEX: 1; layer-background-color: #708574"></div><div
id="yyd2"
style="BACKGROUND-COLOR: #379bbf; BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-RIGHT: #000000 1px; BORDER-TOP: #000000 1px; CLIP: rect(0px 3px 3px 0px); HEIGHT: 3px; LEFT: 30px; POSITION: absolute; TOP: 50px; WIDTH: 3px; Z-INDEX: 1; layer-background-color: #379bbf"></div><div
id="yyd3"
style="BACKGROUND-COLOR: #25184c; BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-RIGHT: #000000 1px; BORDER-TOP: #000000 1px; CLIP: rect(0px 3px 3px 0px); HEIGHT: 3px; LEFT: 40px; POSITION: absolute; TOP: 50px; WIDTH: 3px; Z-INDEX: 1; layer-background-color: #25184c"></div><div
id="yyd4"
style="BACKGROUND-COLOR: #31bd3c; BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-RIGHT: #000000 1px; BORDER-TOP: #000000 1px; CLIP: rect(0px 3px 3px 0px); HEIGHT: 3px; LEFT: 50px; POSITION: absolute; TOP: 50px; WIDTH: 3px; Z-INDEX: 1; layer-background-color: #31bd3c"></div><div
id="yyd5"
style="BACKGROUND-COLOR: #c11efd; BORDER-BOTTOM: #000000 1px; BORDER-LEFT: #000000 1px; BORDER-RIGHT: #000000 1px; BORDER-TOP: #000000 1px; CLIP: rect(0px 3px 3px 0px); HEIGHT: 3px; LEFT: 60px; POSITION: absolute; TOP: 50px; WIDTH: 3px; Z-INDEX: 1; layer-background-color: #c11efd"></div><script>
var yyns4=window.Event?true:false; var yy_mt = 0; var yy_ml = 0;
document.onmousemove = YY_Mousetrace;
yy_tracescript = '';

if (yyns4){ document.captureEvents(Event.MOUSEMOVE);
YY_Mousetrace('',',document.YY_Mousetrace1')}

YY_Layerfx(0,0,'yy_ml+cos((15*sin(yycnt/39.83007847812662))+0)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','yy_mt+sin((15*sin(yycnt/34.224861639800686))+0)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','document.layers[\'yyd0\']',2000,true,80,0,1);

YY_Layerfx(0,0,'yy_ml+cos((15*sin(yycnt/27.66510707209673))+30)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','yy_mt+sin((15*sin(yycnt/9.240632767417667))+30)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','document.layers[\'yyd1\']',2000,true,80,0,1);

YY_Layerfx(0,0,'yy_ml+cos((15*sin(yycnt/16.45318944579641))+60)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','yy_mt+sin((15*sin(yycnt/16.0564452288292))+60)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','document.layers[\'yyd2\']',2000,true,80,0,1);

YY_Layerfx(0,0,'yy_ml+cos((15*sin(yycnt/6.95348954836835))+90)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','yy_mt+sin((15*sin(yycnt/44.13697049887155))+90)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','document.layers[\'yyd3\']',2000,true,80,0,1);

YY_Layerfx(0,0,'yy_ml+cos((15*sin(yycnt/33.90077294583733))+120)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','yy_mt+sin((15*sin(yycnt/2.2378828869411587))+120)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','document.layers[\'yyd4\']',2000,true,80,0,1);

YY_Layerfx(0,0,'yy_ml+cos((15*sin(yycnt/37.858312521039835))+150)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','yy_mt+sin((15*sin(yycnt/18.083839795990098))+150)*150*(sin(10+yycnt/20)+0.2)*cos(yycnt/20)','document.layers[\'yyd5\']',2000,true,80,0,1);
</script>