(function(){
    var d = document;
    var uid = '6Fi4oa7-7no_';
    var SERVER = 'http://www.lpo-pia.com/lpo/';
    var TARGET = SERVER + "imas/scr2";
    var gid = function(e){return d.getElementById(e);};
    var search_engines = {
        'google': 'q',
        'yahoo': 'p',
        'msn': 'q'
        };

    var loadScript = function(url) {
        var s = d.createElement("scr"+"ipt");
        s.type = "text/javasc"+"ript";
        s.src = url;
        d.getElementsByTagName("head")[0].appendChild(s);
    };
    var decodeQuery = function(key, query) {
        var param = query.substring(query.indexOf('?') + 1);
        var p = param.split('&');
        for (var j in p) {
            var m = p[j].split('=');
            if (m[0] == key) {
                return m[1];
            }
        }
    };
    var keyword = function() {
        var ref = d.referrer;
        for (var i in search_engines) {
            var a = '^http://[^/]*'+i;
            var match = ref.match(a);
            if (match) {
                return [i, decodeQuery(search_engines[i], ref)];
            }
        }
        return ["", ""];
    };

    var lpo_start = function() {
        var q = keyword();
        var engine = q[0];
        var query = q[1].replace(/%23|%25|%2F/g,"");
        var param = '/' + uid + '/' + query;

        loadScript(TARGET + param);
    };

    // execute!
    lpo_start();
})();