function chTabblad(iVar) {

    var elementFirstTab = document.getElementById("Top5HD_iTV");
    var elementSecondTab = document.getElementById("Top5All");

    var fullurl = document.URL;
    var arrUrl = fullurl.split("/");
    var boolIsHome = false;

    if (arrUrl.length>=4){
        if (arrUrl[3]=="") {
            boolIsHome = true
        }
    }

    if (iVar == 0) {
        var SelectedCell = 0
        elementFirstTab.style.visibility = "visible";
        elementSecondTab.style.visibility = "hidden";
        document.frmTabblad.selectedTab.value = "txtHD";
        if (boolIsHome) frmInvoer.dtv_HD[0].click();
    } else {
        var SelectedCell = 2
        elementFirstTab.style.visibility = "hidden";
        elementSecondTab.style.visibility = "visible";
        document.frmTabblad.selectedTab.value = "txtAll";
        if (boolIsHome) frmInvoer.dtv_HD[1].click();
    }
    var tabBladRij = document.getElementById('tblTabBladen').rows[0].cells;

    for (var j = 0; j < 4; j = j + 2) {
        if (j == SelectedCell) {
            tabBladRij[j].style.backgroundColor = "#ACDB97";
            tabBladRij[j + 1].style.backgroundColor = "#ACDB97";
            tabBladRij[j].style.borderBottomWidth = "0px";
            tabBladRij[j + 1].style.borderBottomWidth = "0px";
        } else {
            bgColorTab = "#D3F7BA"

            tabBladRij[j].style.backgroundColor = bgColorTab;
            tabBladRij[j + 1].style.backgroundColor = bgColorTab;
            tabBladRij[j].style.borderBottomWidth = "1px";
            tabBladRij[j].style.borderBottomColor = bgColorTab;
            tabBladRij[j + 1].style.borderBottomWidth = "2px";
            tabBladRij[j + 1].style.borderBottomColor = bgColorTab;

        }
    }
}