Js calls the specific implementation code of the parent window

Source: Internet
Author: User

Opener. show ();
A show () method is required for the parent form.
Parent Page code:
Copy codeThe Code is as follows:
<! Doctype html public "-// IETF // DTD LEVEL1 // EN">
<Html>
<Head>
<Title> html.html </title>

<Meta http-equiv = "keywords" content = "keyword1, keyword2, keyword3">
<Meta http-equiv = "description" content = "this is my page">
<Meta http-equiv = "content-type" content = "text/html; charset = UTF-8">
<! -- <Link rel = "stylesheet" type = "text/css" href = "./styles.css"> -->
</Head>
<Body>

<Div>
<Button id = "btn"> open new page </button>
</Div>

<Script>

Window. onload = function (){

Var btn = document. getElementById ("btn ");

Btn. onclick = openPage;

Function openPage (){
Try {
Required parameter open('newpage.html ');
} Catch (e ){
Alert (e );
}
// Alert ("OK ");
}
}
Function show (){
Document. title = new Date ();
}
</Script>
</Body>
</Html>

Page to be opened by newpage.html code
Copy codeThe Code is as follows:
<! Doctype html public "-// IETF // DTD LEVEL1 // EN">
<Html>
<Head>
<Title> newpage.html </title>

<Meta http-equiv = "keywords" content = "keyword1, keyword2, keyword3">
<Meta http-equiv = "description" content = "this is my page">
<Meta http-equiv = "content-type" content = "text/html; charset = UTF-8">
<! -- <Link rel = "stylesheet" type = "text/css" href = "./styles.css"> -->
</Head>
<Body>
<Button id = "btn" onclick = "fun ()"> click </button>
<Script>

Function fun (){
Opener. show ();
}

</Script>
</Body>
</Html>

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