$(document).ready(function(){
	links.setTarget();
	if($.browser.msie && $.browser.version == 6) {
		menu.follow();
		$('ul.submenu').css('top', $('ul.menu').height() + 45);
	}
});

links = {
	setTarget : function(){
		$("a[rel^='external']").attr('target','_blank');
	}
}

menu = {
	follow : function(){
		$('ul.menu,ul.submenu').css('position','absolute');
		$(window).scroll(function(){
			$('ul.menu').css('top',menu._getScroll()['scrollTop']);
			$('ul.submenu').css('top', $('ul.menu').height() + menu._getScroll()['scrollTop'] + 40);
		});
	},
	_getScroll : function(){
		scrollTop = window.pageYOffset || document.documentElement.scrollTop || 0;
		return {scrollTop:scrollTop};
	}
}