var over  = function() {
	$('r_nav').tween('height', '140px');
}
var out  = function() {
	$('r_nav').tween('height', '0px');
}

var ua = navigator.userAgent;


window.addEvent('domready', function() {
	//smooooooth scrolling enabled
	new SmoothScroll({ duration:500 }, window); 

	if (!ua.match(/MSIE 6.0/i)) {
		$('recruit').addEvent('mouseover', over);
		$('recruit').addEvent('mouseout', out);
	}

});