function FIND(item) {
    if (window.mmIsOpera) return (document.getElementById(item));
    if (document.all) return (document.all[item]);
    if (document.getElementById) return (document.getElementById(item));
    return (false);
}

function ChangeCheckBoxValue() {
    var i;
    var args = ChangeCheckBoxValue.arguments;
    var obj_me = FIND(args[0]);

    for (i = 1; i < args.length; i++) {
        var obj_other = FIND(args[i]);
        if (obj_me.checked) obj_other.checked = false;
    }
}