$(document).ready(function() {
    var toolButtons = $('#toolButtons > li > a');
    var insideCenter = $('#insideCenter > div');
    toolButtons.each(function(idx) {
            $(this).data('item', insideCenter.eq(idx));
        }).hover(
        function() {
            toolButtons.removeClass('active');
            insideCenter.removeClass('active');             
            $(this).addClass('active');  
            $(this).data('item').addClass('active');
        });
    });
/*
function addClass(obj) {
	var item3 = document.getElementById("item3");
	obj.classname += " active";
	item3.classname = "active";
}
*/