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Archived Message:

Need help for Activ eBook


 
rlemire Does anyone know how to return a variable from an online database -- back into an Activ eBook?

I can return to my eBook using the following javascript code, but can't return a variable by adding it to the URL.

targetURL="('##NAVIGATE('myPage.htm')";
parent.location=targetURL;


Posted on: 9:00 pm on June 27, 2003
EBookCompiler I don't know about anybody else, but I didn't understand the question ! :-) :-)  

Perhaps you could rephrase or put an example of what you're trying to do.


Posted on: 8:18 am on July 1, 2003
rlemire I'm sorry if my question was vague. I want to retrieve data from a server while using an Activ eBook.

I wasn't able to find a way to return data using
the following (return to eBook) format.

var targetURL="('##NAVIGATE('Activ_eBook_Page.htm')";
parent.location=targetURL;

But for anyone who needs to retrieve data from an online server using PHP, here is a simple solution.

PHP has the capability to create and store data in an online text file using the following code snippet in a PHP code section.

$some_text = "here is my\ntext over few\nlines";
$fw = fopen("/path/file","w+"; //will create file if not existing
fwrite($fw,$some_text);
fclose($fw);

[color=red]In practice it could look like this...[/color]

$some_text = "myvar=3"; // variable you want to pass
$fw = fopen("webdata.jgp","w+"; //file created on server
fwrite($fw,$some_text);
fclose($fw);

This text file will actually be a JavaScript include file i.e. "webdata.js". Unfortunately Browsers cache ".js" files so if you need this data to be updated on subsequent calls you must name the extension something other than ".js"

To retrieve this data you need a statement in your HTML page.

<html>
<head>
<title>myWebDoc</title>

[color=red]<SCRIPT LANGUAGE="JavaScript" SRC="http://server_location/webdata.jgp"></SCRIPT>[/color]

<SCRIPT language='javascript'>
if (myvar == 3){
alert ("its3";
}
else{
alert ("itsNot3";
}
// your JavaScript code will retrieve "myvar" value from online "webdata.jgp"

</script>


Posted on: 4:31 pm on July 1, 2003
EBookCompiler Okay I get it now

I think I have seen a JavaScript which grabbed content into a string. Not sure about that.

Another way in an ebook might be to have use the API to use the WinInet functions to grab it into an Activ variable

And like you say, another way might be to get the server to write out some file or JavaScript that you link to from the ebook


Posted on: 2:39 pm on July 4, 2003

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