function init() {
	resizePageBounds();
	YAHOO.util.Event.addListener(window, 'resize', resizePageBounds);
}

function resizePageBounds(){
	var viewHeight = YAHOO.util.Dom.getViewportHeight();
	var pageBoundsEl = YAHOO.util.Dom.get('pageBounds');
	YAHOO.util.Dom.setStyle(pageBoundsEl, 'height', viewHeight+'px' );
}

YAHOO.util.Event.onDOMReady(init);