function check_product_input(f){

        var s_type = 0;

        for (; s_type < 5; s_type++)

                if (f.freecode[s_type].checked)

                        break;

        switch(s_type)

        {

        case 0:

                f.action = "http://news.sogou.com/news";

                break;

        case 1:

                f.action = "http://www.sogou.com/web";

                break;

        case 2:

                f.action = "http://mp3.sogou.com/music";

                break;

        case 3:

                f.action = "http://pic.sogou.com/pics/pics";

                break;

        case 4:

                f.action = "http://map.sogou.com/index.html";

                break;

        default:

                f.action = "http://www.sogou.com/web";

                break;

        }

        f.submit();

}

function check_insite_input(f){

	if (f.freecode[0].checked)

		f.insite.value = "";

	f.submit();

}