// This script will flatten all open documents in Photoshop

// ensure that there is at least one document open; if not, display error message
if (documents.length == 0) { alert("There are no documents open.");	}

else {
	
	myTotalDocs = (documents.length - 1);


	for ( i = 0;  i <= myTotalDocs;  i++ )  //This loop will keep pages in order, with the last page on top
		{
			myDocument = app.documents[i];
			app.activeDocument = myDocument;
			myDocument.flatten();
		}

}