1。子页面又父页面通过window.open弹出
子页面要向父页面传值，只要在document前面加window.opener即可。
如：
父页面：
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <script language="javascript"> function tanchu() { window.open("Untitled-5.html"); } </script> <body> <form id="form1" name="form1" method="post" action=""> <label> <input type="submit" name="button" id="button" value="提交" onclick="tanchu()" /> </label> <label> <input type="text" name="textfield" id="textfield" /> </label> </form> </body> </html>
子页面
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <script language="javascript"> function aaa() { window.opener.document.getElementByIdx('textfield').value='123123123'; } </script> <body> <form id="form1" name="form1" method="post" action=""> <label> <input type="submit" name="button" id="button" value="提交" onclick="aaa()" /> </label> </form> </body> </html>
2。子页面是iframe框架中的页面 子页面要向父页面传值，只要在document前面加parent即可。
父页面
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <form id="form1" name="form1" method="post" action=""> <label> <input type="text" name="textfield" id="textfield" /> </label> <iframe id="myiframe" src="Untitled-3.html"></iframe> </form> </body> </html>
子页面
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <script language="javascript"> function aa() { var a=parent.document.getElementByIdx('textfield').value; alert(a); } </script> <body> <form id="form1" name="form1" method="post" action=""> <label> <input type="submit" name="button" id="button" value="提交" onClick="aa()" /> </label> </form> </body> </html>