var zca = 9;
var za = new Array(zca);
    
    za[0] = "http://airtravelcenter.ch/js/bwiz160.js";
    za[1] = "http://airtravelcenter.ch/js/adcntrS.js";
    za[2] = "http://airtravelcenter.ch/js/bb160.js";
    za[3] = "http://airtravelcenter.ch/js/fb160.js";
    za[4] = "http://airtravelcenter.ch/js/points120.js";
    za[5] = "http://airtravelcenter.ch/js/visiticket120.js";
    za[6] = "http://airtravelcenter.ch/js/bwiz160.js";
    za[7] = "http://airtravelcenter.ch/js/adcntrS.js";
    za[8] = "http://airtravelcenter.ch/js/bb160.js";

    function pRan1(range) {
        if (Math.random)
            return Math.round(Math.random() * (range-1));
        else {
            var now = new Date();
            return (now.getTime() / 1000) % range;
        }
    }
    
        var ch1 = pRan1(zca);
    document.writeln("<script src=" + za[ch1] + ">" + "<" + "/script" + ">");