# Class extends movieclip

**URL:** <https://forum.kirupa.com/t/class-extends-movieclip/178964>\
**Category:** Uncategorized\
**Created:** [February 15, 2006, 7:20pm UTC](https://forum.kirupa.com/t/class-extends-movieclip/178964 "2006-02-15T19:20:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Uli](https://avatars.discourse-cdn.com/v4/letter/u/ccd318/32.png) [@Uli](https://forum.kirupa.com/u/Uli)\
**Post date:** [February 15, 2006, 7:20pm UTC](https://forum.kirupa.com/t/class-extends-movieclip/178964/1 "2006-02-15T19:20:37Z")

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Hello,

I have a little prob here, maybe someone can help me…

in human.as:  
class human extends MovieClip {  
function onEnterFrame() {  
\_x += 10;  
}  
function human() {  
attachMovie(“skin1”, “skin1”, 1);  
}  
}  
in my fla:  
Object.registerClass(skin1, human);  
\_root.attachMovie(“skin1”, “User1”, 1);

so i have an attached movieclip on \_root now, i can see it but the onEnterFrame function doesn’t work. Why?? :dog: