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分享document.all和document.layers的问题，
有请各位高手帮帮小弟的忙，
if(document.all||document.layers)
{regenerate2();
update()}
regenerate2()和update()是两个函数，如果满足if的条件就执行这两个函数，我的问题是document.all和document.layers两者相或表示的是什么意思啊，
if(document.all||document.layers)
{regenerate2();
update()}
regenerate2()和update()是两个函数，如果满足if的条件就执行这两个函数，我的问题是document.all和document.layers两者相或表示的是什么意思啊，
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bencalie 2003-09-16
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只要是IE或者Netscape，条件就成立，返回True，如果二者都不是，就返回False，不执行大括号中语句
bencalie 2003-09-16
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tickertape应该是页面内的frame或者iframe对象，而subtickertape，则是tickertape内的frame或者iframe对象
program334 2003-09-16
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to:bencalie:那这句话是什么意思啊
document.tickertape.document.subtickertape.document.close()是什么意思啊，我知道的是tickertape和subtickertape分别是定义的id,
document.tickertape.document.subtickertape.document.close()是什么意思啊，我知道的是tickertape和subtickertape分别是定义的id,
program334 2003-09-15
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to:bencalie那他们两个相或的返回值是什么啊
bencalie 2003-09-15
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document.all表示IE浏览器，document.layers表示Netscape浏览器，当然一些以IE为核心的浏览器也会支持document.all
xubaogongChina 2003-09-15
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我也是第一次听说，希望高手赐教
<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);
document.layers&&!document.all)
event="test"
function showtip2(current,e,text){
if (document.all&&document.readyState=="complete"){
document.all.tooltip2.innerHTML=''
document.all.tooltip2.style.pixelLeft=event.clientX+document.body.scrollLeft+10
document.all.tooltip2.style.pixelTop=event.clientY+document.body.scrollTop+10
document.all.tooltip2.style.visibility="visible"
}
else if (document.layers){
document.tooltip2.document.nstip.document.write(''+text+'')
document.tooltip2.document.nstip.document.close()
document.tooltip2.document.nstip.left=0
currentscroll=setInterval("scrolltip()",100)
document.tooltip2.left=e.pageX+10
document.tooltip2.top=e.pageY+10
document.tooltip2.visibility="show"
}
}
function hidetip2(){
if (document.all)
document.all.tooltip2.style.visibility="hidden"
else if (document.layers){
clearInterval(currentscroll)
document.tooltip2.visibility="hidden"
}
}
function scrolltip(){
if (document.tooltip2.document.nstip.left>=-document.tooltip2.document.nstip.document.width)
document.tooltip2.document.nstip.left-=5
else
document.tooltip2.document.nstip.left=150
}
function YY_Layerfx(yyleft,yytop,yyfnx,yyfny,yydiv,yybilder,yyloop,yyto,yycnt,yystep) {
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) { //v1.2 copyright (c)1999 Yaromat
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)
}
function PopWin()
{
var PopWin = window.open("new.htm","PopWin","toolbar=no,directries=no,scrollBars=yes,height=350,width=400");
}
