Issue converting old AS2 code to AS3 to make a calculator work.

Hi Kglad,

Many thanks for your kind help, which is greatly appreciated.

1. you need to define the variables.  if they were assigned to textfield properties in the as2 fla, you can call textFieldsVariablesF each time you need to update those variables:

2. you can unload if this was loaded by another swf (using a loader).  else just create an empty keyframe or whatever you want to display to close "this".

function textFieldVariablesF():void{
hookload = Number(your_hookload_tf.text);
speed = Number(your_speed_tf.text);
etc
}

// create permissible variable to ensure field is cleared on application load
var permissible:Number;
var speed:Number;
var hookload:Number;
var drag:Number;
var area:Number;

calculate_btn.addEventListener("MouseEvent.MOUSE_DOWN,calculateF);

function calculateF(e:MouseEvent):void {
// you probably need to call textFieldVariablesF() here
// execute script to calculate values
if (speed>0 && hookload>0 && area >0 && drag >1.19999){
permissible = Math.round(Math.sqrt(hookload*1.2/(drag*area))*speed*100)/100
if(permissible > speed) {
total_txt.text = String(permissible);
}else{
//issue message if incorrect input
total_txt.text = "Incorrect Input";
}
}
clear_btn.addEventListener("MouseEvent.MOUSE_DOWN,clearF);

function clearF(e:MouseEvent):void{
//clear named fields
//assign text property to your textfields
}

close_btn.addEventListener(MouseEvent.MOUSE_DOWN,closeF);

function closeF(e:MouseEvent):void{
//unload this movie
this.loaderInfo.loader.unloadMovie();  // assuming "this" was loaded
}