function setTab(tabname){

    var tabs = document.getElementsByClassName('scantab');
    var length = tabs.length;

    for(i = 0; i < length; i++){
        tabs[i].className = "scantab";
        if('gfa_'+tabname == tabs[i].id ){
            document.getElementById('gfa_'+tabname).className = document.getElementById('gfa_'+tabname).className+" active";
        }
    }

    var views = document.getElementsByClassName('view');
    var length = views.length;
    for(j = 0; j < length; j++){
        if(tabname == views[j].id ){
           document.getElementById(views[j].id).style.display = "block";
        } else {
          document.getElementById(views[j].id).style.display = "none";
        }
    }
}

function clickLink(link) {
	var cancelled = false;

    if (document.createEvent) {
        var event = document.createEvent("MouseEvents");
        event.initMouseEvent("click", true, true, window,
            0, 0, 0, 0, 0,
            false, false, false, false,
            0, null);
        cancelled = !link.dispatchEvent(event);
    }
    else if (link.fireEvent) {
        cancelled = !link.fireEvent("onclick");
    }

    if (!cancelled) {
        window.location = link.href;
    }
}