$(function(){
				
				
				
				
				
				$('.brothers li:odd').css({background:'white'});
				//			1. slide_show

				$('#btn_right').click(function(){
					$('#header img:last').fadeTo(1400,0.1,function(){
						$('#header img').css({left:'4px',top:'13px',position:'absolute'});
						$(this).prependTo('#header .grid_7').fadeTo(213,1.0);
						$('#header img').css({left:'4px',top:'13px',position:'absolute'});
					});
				});
				$('#btn_left').click(function(){
					$('#header img:first').fadeTo(800,0.1,function(){
						$('#header img').css({left:'4px',top:'13px',position:'absolute'});
						$(this).appendTo('#header .grid_7').fadeTo(1600,1.0);
						$('#header img').css({left:'4px',top:'13px',position:'absolute'});
					});
				});
				/*
				setInterval(slide_show, 9000);
				var div_chg = $('#carol_div');
				var img_chg = $('#carol_img');	
				var counter2 = 1;	
					function slide_show(){
					counter2++;
					$(div_chg).fadeTo(1700,0.2,function(){$(this).css({background:'url(img/header'+counter2+'.jpg'}).fadeTo(4111,1);});
					$(img_chg).fadeTo(1700,0.2,function(){$(this).css({background:'url(img/lambda'+counter2+'.jpg'}).fadeTo(4111,1);});
					if (counter2 >=4){
						counter2 = 1;
					}	
				}
				*/
				
				//					2. highlight current page
				$('.current_page_item a').css({color:'rgb(0,123,213)',fontWeight:'bold'});
				$('#nav_div li > a').mouseover(function(){
					$(this).css({color:'rgb(0,123,213)'});
					$('.current_page_item a').css({color:'rgb(0,123,213)',fontWeight:'bold'});
				});
				$('#nav_div li > a').mouseout(function(){
					$(this).css({color:'rgb(255,255,255)'});
					$('.current_page_item a').css({color:'rgb(0,123,213)',fontWeight:'bold'});
				});
				
				//					3. highlight footers & side bar
				
				$('#footer a, #div_side_bar a').mouseover(function(){
					$(this).css({color:'rgb(255,255,255)'});
				});
				$('#footer a, #div_side_bar a').mouseout(function(){
					$(this).css({color:'rgb(0,123,213)'});
				});
				
							
});