框架学习（二）子窗口访问父窗口中的变量和函数

最新推荐文章于 2023-07-10 19:00:00 发布

trustnature

最新推荐文章于 2023-07-10 19:00:00 发布

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1、

<html>
<head>
<title>The Unchanging frameset page</title>
<script Language="JavaScript" type="text/javascript">
var pagesVisited = new Array();
function returnPagesVisited()
{
var returnValue = "So far you have visited the following pages\n";
var pageVisitedIndex;
var numberOfPagesVisited = pagesVisited.length;
for (pageVisitedIndex = 0; pageVisitedIndex < numberOfPagesVisited;pageVisitedIndex++)
 {
        returnValue = returnValue + pagesVisited[pageVisitedIndex] + "\n";
 }
return returnValue;
}
function addPage(fileName)
{
var fileNameStart = fileName.lastIndexOf("/") + 1;
fileName = fileName.substr (fileNameStart);
pagesVisited[pagesVisited.length] = fileName;
return true;
}
</script>
</head>
<frameset cols="50%,*">
<frame name=fraLeft src="page_a.htm">
<frame name=fraRight src="page_b.htm">
</frameset>
</html>

2、四个

<html>
<head>
<script language="JavaScript" type="text/javascript">
function butShowVisited_onclick()
{
document.form1.txtaPagesVisited.value = window.parent.returnPagesVisited();
}
</script>
</head>
<body onload="window.parent.addPage(window.location.href);">
<center>
<font size=6 color=MidnightBlue face=verdana>
This is Page A
</font>
</center>
<p>
<A href="page_a.htm">Page A</A>
<A href="page_b.htm">Page B</A>
<A href="page_c.htm">Page C</A>
<A href="page_d.htm">Page D</A>
</p>
<form name=form1>
<textarea rows=10 cols=35 name=txtaPagesVisited wrap=hard>
</textarea>
<br>
<input type="button" value="List Pages Visited" name=butShowVisited
onclick="butShowVisited_onclick()">
</form>
</body>
</html>