$(document).ready(function() {
	getHeight();
	$('#header-bar a.close').mouseover(function() {
		$('#header-bar a.close').addClass('activated');
	}).mouseout(function() {
		$('#header-bar a.close').removeClass('activated');
	});
});
$(window).resize(function() {
	getHeight();
}).load(function() {
	getHeight();
});
function getHeight(){
	var headerH = 150;
	$('#preview-frame').height($(window).height() - headerH);
}