// JavaScript Document
/***导航开始****/
function $(id) {
    return document.getElementById(id);
}
function ShowSelNav(idnum)
{
	for(var i=0;i<4;i++)
        {
            $("HeadSN_"+i).className="";
        } 
        $("HeadSN_"+idnum).className="ok";
}

/****/
function ShowMenuCon(bigmenu,smallmenu,bignum,smallnum,bigshowid,smallshowid)
{
	for(var i=0;i<bignum;i++)
        {
            $(bigmenu+"_"+i).className="";
        }
        $(bigmenu+"_"+bigshowid).className="ok";
	for(var i=0;i<smallnum;i++)
        {
            $(smallmenu+"_"+i).style.display="none";
        }
        $(smallmenu+"_"+smallshowid).style.display="block"; 
}
function checkUrl(idname,linkurl)
{
	$(idname).href=linkurl;	
}
function showMenu (baseID, divID) {
    baseID = $(baseID);
    divID  = $(divID);
    if (showMenu.timer) clearTimeout(showMenu.timer);
	hideCur();
    divID.style.display = 'block';
	showMenu.cur = divID;

    if (! divID.isCreate) {
        divID.isCreate = true;
        //divID.timer = 0;
        divID.onmouseover = function () {
            if (showMenu.timer) clearTimeout(showMenu.timer);
			hideCur();
            divID.style.display = 'block';
        };

        function hide () {
            showMenu.timer = setTimeout(function () {divID.style.display = 'none';}, 1000);
        }

        divID.onmouseout = hide;
        baseID.onmouseout = hide;
    }
	function hideCur () {
		showMenu.cur && (showMenu.cur.style.display = 'none');
	}
}