var curDoc = app.activeDocument; 
var allParaStyles = curDoc.allParagraphStyles; 
var list = []; 
 
for ( var i = 0; i < allParaStyles.length; i++ ) { 
  var curParaStyle = allParaStyles[i]; 
  var paraStyleName = curParaStyle.name; 
  var paraLanguage = curParaStyle.appliedLanguage.name; 
  list.push(paraStyleName + "\t" + paraLanguage); 
} 
alert_scroll ( "Absatzformate" , list.join("\r") ); 
 
function alert_scroll ( title, input ) { 
   var w = new Window ( "dialog" , title ); 
   var list = w.add ( "edittext", undefined, input, {multiline: true, scrolling: true} ); 
   list.maximumSize.height = w.maximumSize.height-100; 
   list.minimumSize.height = 250; 
   list.minimumSize.width = 400; 
   w.add ( "button", undefined, "Close", {name: "ok"} ); 
   w.show (); 
}