function showDropDown(str_elem_id) {
    if (str_elem_id) {
        document.getElementById(str_elem_id).style.visibility = "visible";
        document.getElementById(str_elem_id + "_button").style.borderColor = "#333333";
        document.getElementById(str_elem_id + "_button").style.backgroundColor = "#eeeeee";
    }
}
        
function hideDropDown(str_elem_id) {
    if (str_elem_id) {  
        document.getElementById(str_elem_id).style.visibility = "hidden";
        document.getElementById(str_elem_id + "_button").style.borderColor = "#ffffff";
        document.getElementById(str_elem_id + "_button").style.backgroundColor = "";
        document.getElementById(str_elem_id + "_button").style.textDecoration = "none";
        
    }   
}       

function checkBoxClicked(str_url, str_checked, str_uncheck) {
    document.getElementById(str_uncheck).checked = false;
    document.getElementById(str_checked).checked = true;
    location.replace(str_url);
}