function menu_display(t_id,i_id){//显示隐藏程序
	var t = document.getElementById(t_id);//表格ID
	var i = document.getElementById(i_id);//图片ID
	var on_img="../../images/fold_2.gif";//打开时图片
	var off_img="../../images/fold_1.gif";//隐藏时图片
	if (t.style.display == "none") {//如果为隐藏状态
		t.style.display="";//切换为显示状态
		i.src=on_img;//换图
	}
  else{//否则
    t.style.display="none";//切换为隐藏状态
    i.src=off_img;
	}//换图
 }
function content_display(t_id,i_id){//显示隐藏程序
        var t = document.getElementById(t_id);//表格ID
        var i = document.getElementById(i_id);//图片ID
        var on_img="../../images/fold_2.gif";//打开时图片
        var off_img="../../images/fold_1.gif";//隐藏时图片
                if (t.style.display == "none") {//如果为隐藏状态
                t.style.display="";//切换为显示状态
                i.src=on_img;//换图
 }
        else{//否则
                t.style.display="none";//切换为隐藏状态
                i.src=off_img;
                }//换图

 }
function openme(object){
object.style.background="#FFFFCC";}
function closeme(object){
object.style.background="#99FFFF";}

function showhide(t_id,i_id){//显示隐藏程序
        var t = document.getElementById(t_id);//表格ID
        var i = document.getElementById(i_id);//图片ID
        var on_img="../../images/minus.gif";//打开时图片
        var off_img="../../images/plus.gif";//隐藏时图片
                if (t.style.display == "none") {//如果为隐藏状态
                t.style.display="";//切换为显示状态
                i.src=on_img;//换图
 }
        else{//否则
                t.style.display="none";//切换为隐藏状态
                i.src=off_img;
                }//换图

 }