$(document).ready(function() {
						   
	var about_child = $('#about_child');
	var about = $('#about');
	
	function setMenuShow (event) {
		if(about_child.hasClass('hide')) {
			about_child.removeClass('hide');
			about.addClass('sudoover');
		}
		
	}
	
	function setMenuHide (event) {
		if(!about_child.hasClass('hide')) {
			about_child.addClass('hide');
			about.removeClass('sudoover');
		}
	}
	
	about.bind("mouseover",setMenuShow).bind("mouseout",setMenuHide);
	about_child.bind("mouseover",setMenuShow).bind("mouseout",setMenuHide);

});