你的iframe里面的网页还没有onload当然不能访问,把这些内容放在<body onload="a()">
<body onload=a()>
<form name="form1" id="form1"><textarea name="detail1">eee</textarea></form> //定义一个文本域,名为detail1
<IFRAME id=Editor marginWidth=1 src="about:blank" style="BACKGROUND-COLOR: white; HEIGHT: 150px; WIDTH: 100%"></IFRAME> //定义一个iframe,名为Editor
<script language="JavaScript">
function a(){
var doc;
doc=document.frames.Editor.document;
doc.body.innerHTML=form1.detail1.value;
}
</script></body>
<body onload=a()>
<form name="form1" id="form1"><textarea name="detail1">eee</textarea></form> //定义一个文本域,名为detail1
<IFRAME id=Editor marginWidth=1 src="about:blank" style="BACKGROUND-COLOR: white; HEIGHT: 150px; WIDTH: 100%"></IFRAME> //定义一个iframe,名为Editor
<script language="JavaScript">
function a(){
var doc;
doc=document.frames.Editor.document;
doc.body.innerHTML=form1.detail1.value;
}
</script></body>
<script language="JavaScript">
function a(){
var doc;
doc=document.frames.Editor.document;
doc.body.innerHTML=form1.detail1.value;
}
</script>
<form name="form1" id="form1"><textarea name="detail1">eee</textarea></form> //定义一个文本域,名为detail1
<IFRAME onload="a()" id=Editor marginWidth=1 src="about:blank" style="BACKGROUND-COLOR: white; HEIGHT: 150px; WIDTH: 100%"></IFRAME> //定义一个iframe,名为Editor