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Thread: access html elements in new window

  1. #1
    Join Date
    Jun 2009
    Posts
    2

    Exclamation access html elements in new window

    Hi all this is my first post! I'm searching for the past two days for a solution. and many times google results linked to this website. but i couldnt get a reasonable solution so i'm asking here 'once' again.

    heres the problem
    there is a main page, lets say main.html. from there u can click a link (a href) to login (login.html), after validating the page is redirected to main.html and there I want to change the 'login' link to 'logout'

    main.html
    ----------
    HTML Code:
    <html>
       <head>
          <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
          <link rel="stylesheet" type="text/css" href="../../../style1.css">
          <script language="JavaScript" src="../../../script.js" type="text/javascript"></script></head>
       <body onLoad="window.focus();">
          <h1>Data Base Systems</h1>
          <div id="login"><a href="../login.html">Login</a></div>
       </body>
    </html>
    login.html
    ----------
    HTML Code:
    <html>
       <head>
          <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
       
          <link rel="stylesheet" type="text/css" href="../../style1.css"><script language="JavaScript" src="../../script.js" type="text/javascript"></script></head>
       <body onLoad="document.frmLogin.txtUsername.focus();">
          <form method="post" name="frmLogin">
             <h1>Login</h1>
             <table>
                <tr>
                   <td>Username: </td>
                   <td><input type="text" id="txtUsername" name="txtUsername"></td>
                </tr>
                <tr>
                   <td>Password: </td>
                   <td><input type="password" id="txtPassword" name="txtPassword"></td>
                </tr>
                <tr>
                   <td><input type="button" value="Login" onClick="logIn();"></td>
                   <td>&nbsp;</td>
                </tr>
             </table>
          </form>
       </body>
    </html>
    script.js
    --------
    HTML Code:
    function logIn() {
    	// get the courseid value from URL parameter to know for which course the user is logged in
    	var courseid = getParamValue('courseid');
    	courseid = courseid.toLowerCase();
    	// get form element values 'txtUsername' and 'txtPassword'
    	username = document.frmLogin.txtUsername.value;
    	username = username.toLowerCase();
    	password = document.frmLogin.txtPassword.value;
    	password = password.toLowerCase();
    	// <-- here comes the validation
                if(loggedIn) {
                   var newwin = window.open(courseid+"/summary.html","_self");
                   if(window.focus) {newwin.focus()}
                   newwin.document.getElementById("login").innerHTML = 'Logout'; // [COLOR="Red"]<-- this isnt working[/COLOR]
                }
    I'm using IE7. Didnt work in firefox either.

    What all I tried:

    - instead of var newwin = window.open(courseid+"/summary.html","_self");, i tried var newwin = self.location.replace(courseid+"/summary.html");
    - tried newwin.onload = function () {
    setTimeout('location.reload()',1000); //<- donno which function I should call inside setTimeout
    }
    - tried windows.opener method. got this code somewhere online
    HTML Code:
    var WindowRef = null;
    function openWindow(url, name, props) {
    	if(@cc_on!@false){ //do this only in IE    
    		var WindowRef = window.open("", name, props);
    		WindowRef.close();  
    	}
    	var WindowRef = window.open(url, name, props);
    	if (!WindowRef.opener) {
    		WindowRef.opener = self;
    	}
    	WindowRef.focus();
    	return WindowRef;
    }
    and calling var newwin = openWindow(courseid+"/summary.html","_self","");

    what worked:
    it still can call newwin.document.getElementById("txtUsername").value means it still could checkelements in login.html

    Thank you for any help.

  2. #2
    Join Date
    Jun 2009
    Posts
    2
    no one to help me? :S

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