function change_classnews_topmenu(menuid)
{
	switch(menuid)
	{
		case 1:
			$("#classnews_topmenu1").removeClass("classnews_topmenu2");
			$("#classnews_topmenu1").addClass("classnews_topmenu1");
			$("#classnews_img_topmenu1").attr("src","images/index_student_t1.jpg");
			
			$("#classnews_topmenu2").removeClass("classnews_topmenu1");
			$("#classnews_topmenu2").addClass("classnews_topmenu2");
			$("#classnews_img_topmenu2").attr("src","images/index_student_t2_1.jpg");
			
			$("#index_classnews1").show();
			$("#index_classnews2").hide();
			$("#index_classnew_more1").show();
			$("#index_classnew_more2").hide();
			break;
		case 2:
			$("#classnews_topmenu1").removeClass("classnews_topmenu1");
			$("#classnews_topmenu1").addClass("classnews_topmenu2");
			$("#classnews_img_topmenu1").attr("src","images/index_student_t1_1.jpg");

			$("#classnews_topmenu2").removeClass("classnews_topmenu2");
			$("#classnews_topmenu2").addClass("classnews_topmenu1");
			$("#classnews_img_topmenu2").attr("src","images/index_student_t2.jpg");
			$("#index_classnews1").hide();
			$("#index_classnews2").show();
			$("#index_classnew_more1").hide()
			$("#index_classnew_more2").show();
			break;
	}
}

function change_zhsj_menu(menuid)
{
	switch(menuid)
	{
		case 1:
			$("#zhsj_menu1").attr("src","images/index_zhsj_menu1.jpg");
			$("#zhsj_menu2").attr("src","images/index_zhsj_menu2_1.jpg");
			$("#index_zhsj_kzdt").show();
			$("#index_zhsj_new").hide();
			break;
		case 2:
			$("#zhsj_menu1").attr("src","images/index_zhsj_menu1_1.jpg");
			$("#zhsj_menu2").attr("src","images/index_zhsj_menu2.jpg");
			$("#index_zhsj_kzdt").hide();
			$("#index_zhsj_new").show();
			break;
	}
}
function change_jspd_menu(menuid)
{
	for(var i=1;i<=4;i++)
	{
		if(menuid==i)
		{
			$("#jspd_menu"+i).attr("src","images/index_jspd_"+i+".jpg");
			$("#index_jspd_list"+i).show();
		}
		else
		{
			$("#jspd_menu"+i).attr("src","images/index_jspd_"+i+"_1.jpg");
			$("#index_jspd_list"+i).hide();
		}
	}
}
function change_jxlt_menu(menuid)
{
		for(var i=1;i<=4;i++)
	{
		if(menuid==i)
		{
			$("#jxlt_menu"+i).attr("src","images/index_bbs_menu"+i+".jpg");
			$("#index_jxlt_list"+i).show();
		}
		else
		{
			$("#jxlt_menu"+i).attr("src","images/index_bbs_menu"+i+"_1.jpg");
			$("#index_jxlt_list"+i).hide();
		}
	}
}
function index_login_input_focus()
{
	$("#username").focus();
}