function findElements(top, right, bottom, left) {
		var hits = $();
		$.each(elements, function(i, element) {
			if (element.height() > 0) {
				var elTop = element.offset().top,
					elLeft = element.offset().left,
					elRight = elLeft + element.width(),
					elBottom = elTop + element.height();

				var isIntersect = !(elLeft > right ||
					elRight < left ||
					elTop > bottom ||
					elBottom < top);

				if (isIntersect) {
					hits.push(element);
				}
			}
		});

		return hits;
	}
Find elements that are within the boundary
@param {number} top
@param {number} right
@param {number} bottom
@param {number} left
@return {jQuery}		A collection of elements