BusinessValueControl::bizvalToggleRowsVisibility

function bizvalToggleRowsVisibility(anchor, className)
		{
			'use strict';

			var display;

			if (anchor.rowsAreVisible)
			{
				anchor.rowsAreVisible = false;
				anchor.innerText = '';
				display = 'none';
			}
			else
			{
				anchor.rowsAreVisible = true;
				anchor.innerText = '';
				display = 'table-row';
			}

			var nodes = document.querySelectorAll('.'+className), i, l = nodes.length;

			for (i = 0; i < l; i++)
				nodes[i].style.display = display;
		}