# Syntax Question

**URL:** <https://forum.kirupa.com/t/syntax-question/233421>\
**Category:** Uncategorized\
**Created:** [July 23, 2007, 9:20pm UTC](https://forum.kirupa.com/t/syntax-question/233421 "2007-07-23T21:20:17Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![function4](https://avatars.discourse-cdn.com/v4/letter/f/dc4da7/32.png) [@function4](https://forum.kirupa.com/u/function4)\
**Post date:** [July 23, 2007, 9:20pm UTC](https://forum.kirupa.com/t/syntax-question/233421/1 "2007-07-23T21:20:17Z")

</div>

I’m having trouble passing a variable into a function. varName comes up undefined whenever I trace it. Seems like I’m doing a simple syntax error; I am very new to AS. Thanks.

```php

function btn(movieName,varName){
    
    movieName.onRelease = function(){
        field_txt.htmlText = about.varName;
//about is a LoadVars class
        scroll._visible = (field_txt.maxscroll > 1);
        trace(varName);
        trace(movieName);
    }

```

This is how I call it

```php

btn(my_mc,about_txt);
//LoadVars works when it is hardcoded

```