/*=========PONLORK==============*/
var users = {
     validate_field:function(e, rf){
        var b = ($(e).value=="" || $(e).value==null);
        $(rf).setStyle( {"display": b ? "":"none"} );
        return (!b);
     }     
} 
function validateFeedback(){
    var submit=true;
    if(users.validate_field('email','err_email')==false) submit = false;
    if(users.validate_field('title','err_title')==false) submit = false;
    if(users.validate_field('des','err_des')==false) submit = false;    
    var chks = $('feedback_information', 'feedback_graphic', 'feedback_tech', 'feedback_navigation', 'feedback_other');
    var no = (chks[0].checked==false && chks[1].checked==false && chks[2].checked==false && chks[3].checked==false && chks[4].checked==false);
    $('chk').setStyle({"display": no ?"":"none"});
    if (no) submit=false;
    return submit; 
}
function validatechk(){
    var submit=true;    
    var chks = $('survey_computer_software', 'survey_house', 'survey_electronic', 'survey_tour_travel', 'survey_general_supply', 'survey_supply_by_kboun','survey_enjoyable_place','survey_histrory','survey_phone','survey_technology','survey_car'
                  ,'survey_joke','survey_motor','survey_movie','survey_beverage','survey_song','survey_clothes','survey_social_life','survey_food','survey_education','survey_night_club'
                  ,'survey_skill','survey_foreign_laguage','survey_job','survey_magazin','survey_novel','survey_other_art','survey_different','survey_sex','survey_crisis_love','survey_fine_friend','survey_computer_hardware');
    var no = (chks[0].checked==false && chks[1].checked==false && chks[2].checked==false && chks[3].checked==false && chks[4].checked==false && chks[5].checked==false && chks[6].checked==false && chks[7].checked==false && chks[8].checked==false && chks[9].checked==false && chks[10].checked==false
               && chks[11].checked==false && chks[12].checked==false && chks[13].checked==false && chks[14].checked==false && chks[15].checked==false && chks[16].checked==false && chks[17].checked==false && chks[18].checked==false && chks[19].checked==false && chks[20].checked==false
               && chks[21].checked==false && chks[22].checked==false && chks[23].checked==false && chks[24].checked==false && chks[25].checked==false && chks[26].checked==false && chks[27].checked==false && chks[28].checked==false && chks[29].checked==false && chks[30].checked==false && chks[31].checked==false);
    $('chk').setStyle({"display": no ?"":"none"});
    if (no) submit=false;
    return submit; 
}



/*==============End Ponlork ======*/