#target indesign 
 
main(); 
 
function main() { 
	var stories = app.activeDocument.stories.everyItem().getElements(); 
	for ( var n = stories.length-1; n > 0; n--) { 
		try { 
			stories[n-1].textContainers[ stories[n-1].textContainers.length-1].insertionPoints.lastItem().contents = "\n"; 
			stories[n].textContainers[0].previousTextFrame = stories[n-1].textContainers[ stories[n-1].textContainers.length-1]; 
		} catch(e) { 
			$.writeln( e ); 
		} 
	} 
}