/**
 * Setzt linken und rechten Container auf gleiche Höhe
 */
function resizeLeft() {
	var leftHeight = $("left").getHeight();
	var rightHeight = $("right").getHeight() - 1;
	
	rightHeight = (rightHeight < 516)? 516 : rightHeight;
      
	if(leftHeight < rightHeight) {
		$("left").setStyle({
			height: rightHeight + "px"
		});
	}
}