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JavaScript gets the method of the element value in the IFRAME page

Source: Internet
Author: User
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  This article is mainly on the JavaScript to obtain an IFRAME in the page elements of the value of the method is introduced, need friends can come to the reference, I hope to help you.

ie method: document.frames[' MyFrame '].document.getelementbyid (' test '). Value;   Firefox method: document.getElementById (' MyFrame '). ContentWindow.document.getElementById (' Test '). Value;   IE, Firefox method:   Code as follows:     function GetValue () {             var tmp = '';              if (document.frames) {              &NBS P     TMP + = "Brother IE said: ';                     tmp + document.frames[' myframe '].document.getelemen Tbyid (' Test '). Value;              }else{                  &NBS P TMP = document.getElementById (' MyFrame '). ContentWindow.document.getElementById (' test ') .value;               }              alert (TMP);        }     Sample code: Code in a.html page   code as follows: <html>             <head>             &NBS P   <meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 ">                 <title>         &NBSP ;           JavaScript get the value of the elements in the IFRAME page test                 </title>            </head>            <BODY&GT ;                 <iframe id= "MyFrame" src= ' b.html ' style= "width:300px;height:50" px; " ></iframe>                 <input type= "button" id= "btn" onclick= "Getv Alue () "value=" Test ">                 <script type=" Text/javascript "> &N Bsp                       function GetValue () {                          &NB Sp var tmp = ';                             if (document.frames) {&NB Sp                                   TMP + + brother said: ';                                   &NB Sp TMP = = document.frames[' myframe '].document.getelementbyid (' test '). Value;                            }else{    &NB Sp                               TMP = document.ge Telementbyid (' MyFrame '). ContentWindow.document.getElementById (' test ') .value;                    &NBSP        }                           & nbsp Alert (TMP);                                   & nbsp     </script>             </body>         </htm The code code for the l>   b.html page is as follows:        <html>             <head >                 <meta http-equiv= "Content-type content=" text/html; Charset=utf-8 ">                 <title>         &NBSP ;           I am an iframe page                 </title> &N Bsp           </head>             <body>                <input type= ' text ' id= ' test ' value= ' welcome: justflyhigh.com ' >     & nbsp       </body>         </html>  

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