Dynamic textbox

Hi ,
I’m a newbie in flash action script 2.0, here i have a presentation .Here i need a text box on the presentation and enter a scene number on the text box and click on the go botton whe i click on the go button goto and play the enterd scen nuber in th presentation .

here is the code : on (release)
{ txtform = _root.gotoAndPlay("")
}

the textbox name is :txtform and button name is “gobtn” .

the code doesn’t work any body can help me pls …

Sandeep