function yk_get_hotkeyword() {
    var query = ["\u80b2\u5152\u6d25\u8cbc2012","\u9673\u67cf\u9716","\u674e\u570b\u4fee","\u95dc\u65bc\u99ac\u9054\u7684\u4f5c\u696d","b\u578b\u6d41\u611f"];
    return query;
}

var cur_query=null;
function update_element(elm) {
    if(cur_query==null) {
        var query=yk_get_hotkeyword();
        var l=query.length;
        var i=Math.round(Math.random()*1000) % l;
        cur_query=query[i];
    }
    elm.value=cur_query;
}