# Cant read from javascript

**URL:** <https://forum.kirupa.com/t/cant-read-from-javascript/320777>\
**Category:** flash\
**Created:** [April 1, 2011, 8:43am UTC](https://forum.kirupa.com/t/cant-read-from-javascript/320777 "2011-04-01T08:43:58Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![KAMA\_](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KAMA\_](https://forum.kirupa.com/u/KAMA_)\
**Post date:** [April 1, 2011, 8:43am UTC](https://forum.kirupa.com/t/cant-read-from-javascript/320777/1 "2011-04-01T08:43:58Z")

</div>

Actionscript Code

```
 ActionScript Code:

```

```auto
[LEFT]import flash.external.ExternalInterface; 
function GetUserIdFromSite() 
{     
textBoxUserIdFromSite.text = ExternalInterface.call("getUserId"); 
}
[/LEFT]
 

```

JavaScript  
Code:

```auto
 
function getUserId()
{ 
var userID = "foo"; return userID; 
} 

```

I have set \<param name=“allowScriptAccess” value=“always” /\>

All i get in the textbox is null. Whats wrong?