[javascript]photoshopの独自GUI、ボタンを押したら実行する記述方法

var activeDocument_name = activeDocument.name;//アクティブになっているドキュメントの名前を取得

 var gUIWindow = new Window('dialog','テストウィンドウ'); 
 
 gUIWindow.bounds = [200,100,580,280]; 
 
 gUIWindow.activeDocPnl = gUIWindow.add("panel",[10,5,370,90],"アクティブドキュメント"); 
 gUIWindow.activeDocPnl .editText = gUIWindow.activeDocPnl .add("edittext",[10,15,345,33], activeDocument_name); 
 gUIWindow.activeDocPnl .editText.enabled = false gUIWindow.activeDocPnl .radiorBtn1 = gUIWindow.activeDocPnl .add("radiobutton",[10,40,200,58], "オリジナル"); gUIWindow.activeDocPnl .radiorBtn2 = gUIWindow.activeDocPnl .add("radiobutton",[10,55,200,75], "複製"); 
 gUIWindow.activeDocPnl .radiorBtn1.value = true; 
 gUIWindow.dList = gUIWindow.add("dropdownlist",[15,110,365,130],["ぼかし（ガウス）20","ダスト＆スクラッチ20,10"]); 
 gUIWindow.dList.selection = 0; gUIWindow.filterPnl = gUIWindow.add("panel",[10,90,370,140],"フィルターの処理"); 
 gUIWindow.okBtn = gUIWindow.add("button",[80,145,175,170], "実行"); 
 gUIWindow.cancelBtn = gUIWindow.add("button",[190,145,285,170], "キャンセル"); 
 
 gUIWindow.okBtn.onClick= function() 
{ 
	if(gUIWindow.activeDocPnl.radiorBtn2.value) 
	{ 
		activeDocument.duplicate(); 
	} else{
		; 
	} if(0 == gUIWindow.dList.selection) 
	{ 
	
		activeDocument.activeLayer.applyGaussianBlur(20.0);　//ガウス
		
	 } else if(1 == gUIWindow.dList.selection)
	  { 
	  
	  	activeDocument.activeLayer.applyDustAndScratches(20,10);　//ダスト＆スクラッチ 
	  	
	  } else{
	  	;
	  } 
	  
	  gUIWindow.close();
	  
 } 
 
 gUIWindow.cancelBtn.onClick = function() 
 { 
 	gUIWindow.close(); 
 } 
 
 gUIWindow.show();