<body>
<SCRIPT language="JavaScript">
<!--
function window.onload()
{
b("a");
setTimeout("b('b');",250);
}
function b(n){document.all(n).style.visibility = "hidden";setTimeout("c('"+n+"')", 500);}
function c(n) {document.all(n).style.visibility ="visible";setTimeout("b('"+n+"')", 500);}
//-->
</SCRIPT>
<span id="a">asdfasdfasdfasdfa</span>
<span id="b">asdfasdfasdfasdfa</span>
</body>
<SCRIPT language="JavaScript">
<!--
function window.onload()
{
b("a");
setTimeout("b('b');",250);
}
function b(n){document.all(n).style.visibility = "hidden";setTimeout("c('"+n+"')", 500);}
function c(n) {document.all(n).style.visibility ="visible";setTimeout("b('"+n+"')", 500);}
//-->
</SCRIPT>
<span id="a">asdfasdfasdfasdfa</span>
<span id="b">asdfasdfasdfasdfa</span>
</body>
<span id="a">2453664785</span>
<SCRIPT language="JavaScript">
<!--
var objs=document.all.a
function b(){
for(i=0;i<objs.length;i++){
obj=objs[i];
obj.style.visibility = "hidden";
}
setTimeout("c()", 500);
}
function c() {
for(i=0;i<objs.length;i++){
obj=objs[i];
obj.style.visibility = "visible";
}
setTimeout("b()", 500);
}
//-->
c();
</SCRIPT>
<!--
function b(){
var aObj=document.getElementsByName("a");
for(var i=0;i<aObj.length;i++)
document.all.aObj[i].style.visibility = "hidden";
setTimeout("c()", 500);
}
function c() {
var aObj=document.getElementsByName("a");
for(var i=0;i<aObj.length;i++)
document.all.aObj[i].style.visibility = "visible";
setTimeout("b()", 500);
}
//-->
</SCRIPT>
可处理只有一个a或没有a的情况。
<span id="a">2453664785</span>yryrrrrrrrrrrr <span id="a">2453664785</span><SCRIPT language="JavaScript">
<!--
function b(){
var aObj=document.getElementsByName("a");
for(var i=0;i<aObj.length;i++)
aObj[i].style.visibility = "hidden";
setTimeout("c()", 500);
}
function c() {
var aObj=document.getElementsByName("a");
for(var i=0;i<aObj.length;i++)
aObj[i].style.visibility = "visible";
setTimeout("b()", 500);
}
//-->c();
</SCRIPT>
可以减少组件遍历!<span id="a">2453664785</span>yryrrrrrrrrrrr<span id="a1">2453664785</span>
<SCRIPT language="JavaScript">
<!--
var objs=document.getElementsByName("a");
function b(){
for(i=0;i<objs.length;i++){
obj=objs[i];
obj.style.visibility = "hidden";
}
setTimeout("c()", 500);
}
function c() {
for(i=0;i<objs.length;i++){
obj=objs[i];
obj.style.visibility = "visible";
}
setTimeout("b()", 500);
}
//-->
b();
c();
</SCRIPT>