function toggleTab(number,total){
    for (var i = 1; i <= total; i++) {
        if (number == i) {
            document.getElementById("tablink_" + i).className = "on";
            document.getElementById("content_" + i).className = "show top"
        }
        else {
            if (number + 1 == i) {
                document.getElementById("tablink_" + i).className = "part";
                document.getElementById("content_" + i).className = "top"
            }
            else {
                document.getElementById("tablink_" + i).className = "";
                document.getElementById("content_" + i).className = "top"
            }
        }
    }
};