jQuery(function(){
	jQuery("#slider-nav-bg").fadeIn(500);
	var prevClass = jQuery("#slider-nav-bg").attr("class").charAt(9);
	var clicked;
	var is_click = false;
	jQuery("#slider-nav li a").click(function(){
		clicked = jQuery(this).attr("id").charAt(5);
		if(prevClass != clicked && !is_click){
			is_click = true;
			jQuery("#slider-nav-bg").attr("class", "slide-bg-"+clicked);
			jQuery("#simg-"+prevClass).css({"z-index":""});
			jQuery("#simg-"+clicked).css({"z-index":"301"}).fadeIn(300, function(){
				jQuery("#simg-"+prevClass).hide();
				prevClass = clicked;
				is_click =false;
			});
		}
		return false;
	});
});