var myTimer;
function ctab2a() {
document.getElementById("tab2a").style.display = "none";
document.getElementById("tab2b").style.display = "block";
}
function ctab2b() {
document.getElementById("tab2b").style.display = "none";
document.getElementById("tab2a").style.display = "block";
}
function cbg(tab) {
document.getElementById("tab"+tab+"_a").style.background = "#e5efff";
document.getElementById("tab"+tab+"_b").style.background = "#e5efff";
}
function cbgreset(tab) {
document.getElementById("tab"+tab+"_a").style.background = "#f7f8fa";
document.getElementById("tab"+tab+"_b").style.background = "#f7f8fa";
}