function $(s){
    return document.all?document.all[s]:document.getElementById(s);
}
//下拉框弹出关闭
function selct(input_id,select_id){
$(select_id).style.display = ($(select_id).style.display=="none")? "":"none";
$(select_id).onmouseover=function(o){inst(o,input_id,select_id)}
}
//将值插入option
function inst(o,input_id,select_id){
var o = o || window.event;
var obj=o.target || o.srcElement;
if (obj.tagName=='LI'){//得到当前事件的li对象
move(obj);
obj.onclick=function(){
$(input_id).value=obj.innerHTML;//用innerHTML是考虑innerTEXT在火狐不兼容。
$(select_id).style.display="none";
}
obj.onmouseout=function(){out(obj)}
}
}

function move(op)
{op.className="move_class";

}

function out(opt)
{opt.className="none";

}
window.onload=function(){
$("selfs").onclick=function(){selct("selfs","slcmenu")}
}


            function switchmodTag(modtag,modcontent,modk) {
                for(i=1; i <4; i++) {
                    if (i==modk) {
                        document.getElementById(modtag+i).className="menuon";document.getElementById(modcontent+i).className="hdlist";}
                    else {
                        document.getElementById(modtag+i).className="menuno";document.getElementById(modcontent+i).className="hdlist_none";}
                }
            }