$(document).ready(function(){
            $("#sidebar_content div").hide(); // Hide all divs
            
            $("#sidebar_content div:first").show(); // Show the first div
            
            $("#sidebar_content ul#tabs_nav li:first a").addClass("active_tab"); // Set the class of the first link to active
            
            $("#sidebar_content ul#tabs_nav li a").click(function(){ // When any link is clicked
            	$("#sidebar_content ul#tabs_nav li a").removeClass("active_tab"); // Remove active class from all links
				$(this).addClass("active_tab"); //Set clicked link class to active
	            var currentTab = $(this).attr("href"); // Set variable currentTab to value of href attribute of clicked link        
	            $("#sidebar_content div").hide(); // Hide all divs
		        $(currentTab).show(); // Show div with id equal to variable currentTab
				return false;
            });
        });