if (app.selection.length != 1 || app.selection[0].constructor.name != "TextFrame")
{
 alert ("Ground. Pull up. Ground. Pull up."); exit(0);
}
// Save selection
targetStory = app.selection[0].parentStory.texts[0];
// Make a Lorem frame
loremFrame = app.activeDocument.textFrames.add();
loremFrame.geometricBounds = [ "0mm","0mm", "200mm", "200mm" ];
loremFrame.insertionPoints[0].appliedFont = "Times New Roman";
loremFrame.insertionPoints[0].pointSize = 8;
loremFrame.contents = TextFrameContents.PLACEHOLDER_TEXT;
sourceStory = loremFrame.texts[0];
// Grab its words
sourceWords = sourceStory.words.everyItem().contents;
// .. and kill the placeholder
loremFrame.remove(0);
// Replace one word at a time. Start at the end.
sourceWord = 0;
destWord = 0;
while (destWord < targetStory.words.length)
{
 targetStory.words[destWord].contents = sourceWords[sourceWord];
 destWord++;
 sourceWord++;
 if (sourceWord >= sourceWords.length)
  sourceWord = 0;
}
alert ("Safe landing. Have a nice day.");