// Balancelastcolumns.jsx
// A simple script to balance the columns at the end of a story
// To use it, place the cursor (insertion point) into the story
// of which the last columns have to be balanced.
// Made by Teus de Jong; last version September 28, 2005
if (app.documents.length == 0){
	exitAlert('No documents are open');
}
if (app.selection.length == 0){
	exitAlert('First place the cursor in the story with the columns');
}
if (app.version == 3){
	theframe = app.selection[0].parentTextFrame.endTextFrame; 
	} else {
	theframe = app.selection[0].parentTextFrames[0].endTextFrame; 
}
nroflines = theframe.lines.length;
nrofcolumns = theframe.textColumns.length;
if (nrofcolumns == 0){
	exitAlert('This story does not have columns')
}
halfway = Math.round(nroflines / nrofcolumns);
// better not compare floats, so we multiply by 10
if (Math.round((nroflines / nrofcolumns) * 10) > (halfway*10)){

	halway += 1;
}
newbottom = theframe.lines[halfway - 1].baseline; 
bounds = theframe.geometricBounds; 
bounds[2] = newbottom; 
theframe.geometricBounds = bounds;

function exitAlert(s){
	alert(s);
	exit()
}