function cancelContactUs() {
    top.location="./index.php";
}

function submitContactUs() {
    var form = document.forms["contactus"];
    if (form != undefined && form != null) {
        
        if (form.txtFullName.value.length <= 0 || form.txtFullName.value.length > 250) {
            alert(_PSA_LG_UNKNOWN_CONTACTUS_001);
            form.txtFullName.focus();
            form.txtFullName.select();
            return 0;    
        }        
        
        if (form.txtEmailAddress.value.length <= 0 && form.txtPhone.value.length <= 0) {
            alert(_PSA_LG_UNKNOWN_CONTACTUS_002);
            return 0;            
        }
        
        if (form.txtEmailAddress.value.length > 320) {
            alert(_PSA_LG_UNKNOWN_CONTACTUS_003);
            form.txtEmailAddress.focus();
            form.txtEmailAddress.select();
            return 0;    
        }
        
        if (form.txtPhone.value.length > 50) {
            alert(_PSA_LG_UNKNOWN_CONTACTUS_004);
            form.txtPhone.focus();
            form.txtPhone.select();
            return 0;    
        }        

        if (form.txtMessage.value.length <= 0 || form.txtMessage.value.length > 1024) {
            alert(_PSA_LG_UNKNOWN_CONTACTUS_005);
            form.txtMessage.focus();
            form.txtMessage.select();
            return 0;    
        }       
        
        if (form.txtImageCode.value.length != 8) {
            alert(_PSA_LG_UNKNOWN_CONTACTUS_006);
            form.txtImageCode.focus();
            form.txtImageCode.select();
            return 0;    
        }                      

        form.submit();
    }
}