function tabdefault() {
    document.getElementById("today_tab").className = "tabhover";
}

function todayhover() {
    document.getElementById("today_tab").className = "tabhover";
    document.getElementById("tabtoday").style.display = "block";

    document.getElementById("week_tab").className = "notselect";
    document.getElementById("tabweek").style.display = "none";

    document.getElementById("month_tab").className = "notselect";
    document.getElementById("tabmonth").style.display = "none";


}

function weekhover() {
    document.getElementById("week_tab").className = "tabhover";
    document.getElementById("tabweek").style.display = "block";

    document.getElementById("today_tab").className = "notselect";
    document.getElementById("tabtoday").style.display = "none";

    document.getElementById("month_tab").className = "notselect";
    document.getElementById("tabmonth").style.display = "none";


}


function monthhover() {
    document.getElementById("month_tab").className = "tabhover";
    document.getElementById("tabmonth").style.display = "block";

    document.getElementById("today_tab").className = "notselect";
    document.getElementById("tabtoday").style.display = "none";


    document.getElementById("week_tab").className = "notselect";
    document.getElementById("tabweek").style.display = "none";
}

/*function usahover() {
    document.getElementById("month_tab").className = "notselect";
    document.getElementById("tabmonth").style.display = "none";

    document.getElementById("today_tab").className = "notselect";
    document.getElementById("tabtoday").style.display = "none";

    document.getElementById("usa_tab").className = "tabhover";
    document.getElementById("tabusa").style.display = "block";

    document.getElementById("week_tab").className = "notselect";
    document.getElementById("tabweek").style.display = "none";
}*/