document.observe('dom:loaded', function () {
	// make all columns the same height
	var columns = $$('div.column');
	columns.invoke('setStyle', { height: '' });
	
	var max_height = columns.inject(0, function (accumulator, column) {
		var height = column.getHeight();
		return (height > accumulator) ? height : accumulator;
	});
	
	columns.invoke('setStyle', { height: max_height + 'px' });
 });


// we no longer need these functions, but they may break the page if removed fully
var clickclear = Prototype.emptyFunction;
var clickrecall = Prototype.emptyFunction;