$(document).ready(function() {

    $("#nav_main div.no").hover(
        function(){
            $("#nav_main div.act").removeClass("act").addClass("act-noclass");
            $(this).removeClass("no").addClass("act");
        }
        ,
        function(){
            $("#nav_main div.act-noclass").removeClass("act-noclass").addClass("act");
            $(this).removeClass("act").addClass("no");
    	});

});

/*
function mainnavuloverfunc()
{
if (document.getElementById)
 {
 if(L1act)L1act.className+="-noclass";
 if(L2act)L2act.className+="-noclass";
 if(L1cur)L1cur.className+="-noclass";
 if(L2cur)L2cur.className+="-noclass";
 if(L3cur)L3cur.className+="-noclass";
 }
}


function mainnavuloutfunc()
{
 if (document.getElementById)
 {
 if(L1act)L1act.className=L1act.className.replace("-noclass", "");
 if(L2act)L2act.className=L2act.className.replace("-noclass", "");
 if(L1cur)L1cur.className=L1cur.className.replace("-noclass", "");
 if(L2cur)L2cur.className=L2cur.className.replace("-noclass", "");
 if(L3cur)L3cur.className=L3cur.className.replace("-noclass", "");
 }
}
*/