function getWindowHeight() {
	

//mozilla firefox and other browsers
	var windowHeight = 0;
		if (typeof(window.innerHeight) == 'number') {
			windowHeight = window.innerHeight;
			}
//internet explorer
		else {
		if (document.documentElement && document.documentElement.clientHeight) {
			windowHeight = document.documentElement.clientHeight;
			}
//IE 4 compatible
		else {
		if (document.body && document.body.clientHeight) {
			windowHeight = document.body.clientHeight;
			}
		}
		}
	return windowHeight;
	}
 
function setContent() {
	
	if (document.getElementById) {
		var windowHeight = getWindowHeight();
	
	
	if (windowHeight > 0) {
		var contentElement = document.getElementById('alignWrapper');
		var contentHeight = contentElement.offsetHeight;
	
	
	if (windowHeight - contentHeight > 0) {
		contentElement.style.position = 'relative';
		contentElement.style.top = ((windowHeight / 2) - (contentHeight / 2)) * 0.7 + 'px';
		}
	
	else {
		contentElement.style.position = 'static';
		}
	}
	}
}

 window.addEvent('domready', function() {
	var contentElement = document.getElementById('alignWrapper');
	setContent();
	contentElement.style.visibility = 'visible';		
 });
 window.onresize = function() {
	setContent();
 }