function getWindowHeight() {
			var windowHeight = 0;
			if (typeof(window.innerHeight) == 'number') {
				windowHeight = window.innerHeight;
			}
			else {
				if (document.documentElement && document.documentElement.clientHeight) {
					windowHeight = document.documentElement.clientHeight;
				}
				else {
					if (document.body && document.body.clientHeight) {
						windowHeight = document.body.clientHeight;
					}
				}
			}
			return windowHeight;
		}
		function verticalCenterContent() {
			if (document.getElementById) {
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					var contentElement = document.getElementById('container-inner');
					var contentHeight = contentElement.offsetHeight;
					if (windowHeight - contentHeight > 0) {
						contentElement.style.position = 'relative';
						var top = ((windowHeight / 2) - (contentHeight / 2));
						var cookie  = Cookie.write('horizontal_centering_top', top, {duration: 30});
						contentElement.style.top = top + 'px';
					}
					else {
					  var cookie  = Cookie.write('horizontal_centering_top', '0', {duration: 30});
						contentElement.style.position = 'static';
					}
				}
			}
		}
		if (false) {
      window.onload = function() {
  			verticalCenterContent();
  		}
  		window.onresize = function() {
  			verticalCenterContent();
  		}
  	}