function getCysUrl(){
    var Params = document.location.search.substring(1).split("&");
    var variable = "";
    for (var i = 0; i < Params.length; i++){
        if (Params[i].split("=")[0] == 'cysurl'){
            if (Params[i].split("=").length > 1) variable = Params[i].split("=")[1];
            return variable;
        }
    }
    return "";
}
document.write('<scr' + 'ipt language="JavaScript"' + ' src=http://cys.ru/form/data.js?url=' + getCysUrl() +'></scr' + 'ipt>');