可以被窗口中的框架引用的对象,具有窗口对象的属性和方法。
格式:
top.frameName|frames[n].属性|方法
parent.frameName|frames[n].属性|方法
例:
/* -------- frameset.htm -------- */
<Script>
document.title = "框架组页";
var usrID = "来宾";
</Script>
<FRAMESET COLS="20%,80%">
<FRAME SRC="menu.htm" NAME=leftFrame>
<FRAMESET ROWS="10%,90%">
<FRAME SRC="usrInfo.htm" NAME=upFrame>
<FRAME SRC="welcome.htm" NAME=downFrame>
</FRAMESET>
</FRAMESET>
<!-------- menu.htm -------->
<HEAD>
<TITLE>导航页</TITLE>
<STYLE>A{text-decoration:none}</STYLE>
</HEAD>
<BODY>
<CENTER>
<A HREF="login.htm" TARGET="downFrame">会员登录</A><BR>
<A HREF="hot.htm" TARGET="downFrame">热门优惠</A><BR>
<A HREF="welcome.htm" TARGET="downFrame">回 首 页</A>
<BR>
</CENTER>
</BODY>
/* -------- usrInfo.htm -------- */
<Script>
document.title = "用户信息";
var bye = "欢迎有空常来..."
document.write
("<MARQUEE>亲爱的<FONT COLOR='gray'><U>",top.usrID,"</U></FONT>会员,欢迎您的光临!</MARQUEE>");
</Script>
/* -------- login.htm -------- */
<Script>
document.title = "用户登录";
function login() {
top.usrID = document.loginForm.usr.value;
top.upFrame.location = "usrInfo.htm";
}
</Script>
<HTML>
<FORM NAME="loginForm">
请输入您的大名:
<INPUT TYPE="text" NAME="usr">
<INPUT TYPE="button" VALUE="填写完毕" onClick=login()>
</FORM>
</HTML>
例:
<Script> /* -------- hot.htm -------- */
document.title = "热门优惠";
if (top.usrID == null) {
location = "frameset.htm";
}
</Script>
今日优惠:
<LI>超级豪华大比萨。(原价$550,今天只要$450)
<LI>海鲜大比萨。(原价$550,今天只要$450)
例:
<!-------- welcome.htm -------->
<HEAD>
<TITLE>首页</TITLE>
<STYLE>A{text-decoration:none}</STYLE>
<Script>
if (top.frames.length == 0) {
location = "frameset.htm";
}
if (top.frames.length > 0) {
location = "frameset.htm";
}
</Script>
</HEAD>
<CENTER>
欢迎光临<H1>
<FONT COLOR="green" FACE="arial">
My PIZZA</FONT></H1>
</CENTER>
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