function select_the_value(obj, val) {
    //obj
    for(i=0;i<obj.length;i++) {
        if(obj.options[i].value==val) {
            obj.selectedIndex=i;
            break;
        }
    }
}

function redirect(url, count_down){
    if(count_down == null) count_down = 0;
    var url = 'window.location="'+url+'";';
    setTimeout(url,count_down*1000);
}