function verifCheck(p_obj)
{
    if (document.getElementById(p_obj) != null) {
        if (document.getElementById(p_obj).checked) {
            return true;
        } else {
            alert("You didn't check the " + p_obj + " box!");
            return false;
        }
    }
}

function openMenu(id)
{
    var x;

    x = document.getElementById(id);
    if (x.style.visibility != 'visible') {
        x.style.visibility  = "visible";
    }
}

function closeMenu(id)
{
    var x;

    x                   = document.getElementById(id);
    x.style.visibility  = "hidden";
}

function clearEnquiry()
{
    var clean_ar = new Array('name', 'company', 'address', 'phone', 'email', 'comments');
    var i;
    var x;

    for (i = 0; i < clean_ar.length; i++) {
        x = document.getElementById(clean_ar[i]);
        if (x) {
            x.value = '';
        }
    }
    x = document.getElementById('subject');
    x.selectedIndex = 0;
}