var text = app.selection[0] ; 
var textContainerArray = text.parentTextFrames ; 
var resultArray = []; 
 
for( var n=0; n<textContainerArray.length; n++ ) 
{ 
	 
	if( textContainerArray[n].parentPage == null ) 
	{  resultArray[n] = "Text-Container ist auf der Montagefläche" ; continue }; 
 
	 resultArray[n] = "Text-Container ist auf Seite mit Namen: " + textContainerArray[n].parentPage.name ; 
}; 
 
alert( "Ergebnis:" +"\r"+ resultArray.join("\r") ); 

// Dave Saunders (6.5.2010)  
// Gregor Fellenz (26.7.2010)  
// http://forums.adobe.com/message/3003131#3003131  
  
function findPage(theObj) { 
     if (theObj.hasOwnProperty("baseline")) { 
          theObj = theObj.parentTextFrames[0]; 
     } 
     while (theObj != null) { 
          if (theObj.hasOwnProperty ("parentPage")) return  theObj.parentPage; 
          var whatIsIt = theObj.constructor; 
          switch (whatIsIt) { 
               case Page : return theObj; 
               case Character : theObj = theObj.parentTextFrames[0]; break; 
               case Footnote :; // drop through 
               case Cell : theObj = theObj.insertionPoints[0].parentTextFrames[0]; break; 
               case Note : theObj = theObj.storyOffset.parentTextFrames[0]; break; 
               case XMLElement :  if (theObj.insertionPoints[0] != null) { theObj =  theObj.insertionPoints[0].parentTextFrames[0]; break; } 
               case Application : return null; 
               default: theObj = theObj.parent; 
          } 
          if (theObj == null) return null; 
     } 
     return theObj 
} // end findPage 

// Dave Saunders (6.5.2010)   
// Gregor Fellenz (26.7.2010)   
// http://forums.adobe.com/message/3003131#3003131   
 
function findPage(theObj) { 
	if (theObj.hasOwnProperty("baseline")) { 
		 theObj = theObj.parentTextFrames[0]; 
	} 
	while (theObj != null) { 
		 if (theObj.hasOwnProperty ("parentPage")) return  theObj.parentPage; 
		 var whatIsIt = theObj.constructor; 
		 switch (whatIsIt) { 
			  case Page : return theObj; 
			  case Character : theObj = theObj.parentTextFrames[0]; break; 
			  case Footnote :; // drop through 
			  case Cell : theObj = theObj.insertionPoints[0].parentTextFrames[0]; break; 
			  case Note : theObj = theObj.storyOffset.parentTextFrames[0]; break; 
			  case XMLElement :  if (theObj.insertionPoints[0] != null) { theObj =  theObj.insertionPoints[0].parentTextFrames[0]; break; } 
			  case Application : return null; 
			  default: theObj = theObj.parent; 
		 } 
		 if (theObj == null) return null; 
	} 
	if (theObj == undefined) theObj = null; 
	return theObj 
} // end findPage