function zapalEmail(){
    document.getElementById('tresc').style.backgroundColor = '#F7F7F7';
    document.getElementById('tresc').style.border = '1px solid #808080';
    document.getElementById('email').style.backgroundColor = 'white';
    document.getElementById('email').style.border = '1px solid #808080';
    document.getElementById('emailLabel').style.color = '#6B6B6B';
    document.getElementById('trescLabel').style.color = '#6B6B6B';
}
function zapalTresc(){
    document.getElementById('email').style.backgroundColor = '#F7F7F7';
    document.getElementById('email').style.border = '1px solid #808080';
    document.getElementById('tresc').style.backgroundColor = 'white';
    document.getElementById('tresc').style.border = '1px solid #808080';
    document.getElementById('trescLabel').style.color = '#6B6B6B';
    document.getElementById('emailLabel').style.color = '#6B6B6B';
}
function wygasWszystkie(){
    document.getElementById('tresc').style.backgroundColor = '#F7F7F7';
    document.getElementById('email').style.backgroundColor = '#F7F7F7';
    document.getElementById('email').style.border = '1px solid #808080';
    document.getElementById('emailLabel').style.color = '#6B6B6B';
    document.getElementById('tresc').style.border = '1px solid #808080';
    document.getElementById('trescLabel').style.color = '#6B6B6B';
}
function rozjasnijButton(){
    document.getElementById('button').src = "libs/ajax/indicator/wyslij2.gif";
}
function sciemnijButton(){
    document.getElementById('button').src = "libs/ajax/indicator/wyslij.gif";
}
function spr_email(mail){
   var value = mail;
    if ((value=='')||(value==' ')) {
       return(false);
    } else return(true);
}
function spr_tresc(tresc){
    var value = tresc;
    if ((value=='')||(value==' ')) {
       return(false);
    } else return(true);
}

function wyslijEmail(){

    var m = spr_email(document.getElementById('email').value);
    var t = spr_tresc(document.getElementById('tresc').value);
    if ((m==true)&&(t==true)) {
      document.getElementById('button').style.visibility = 'hidden';
      var queryString = jQuery("#emailForm").formSerialize();
      jQuery.ajax({
                 type: "POST",
                 url: "email.server.php",
                 data: queryString,
                 beforeSend:  function(){
                    jQuery("#emailForm").remove();
                    jQuery("#feedback").show().html('<img src="./gfx/ajax-loader.gif"/>');
                 },
                 success: function(msg){
                    jQuery("#feedback").html(msg);
                 }
      });
    } else if ((m==true)&&(t==false)) {
       document.getElementById('tresc').style.backgroundColor = '#FCC4BA';
       document.getElementById('tresc').style.border = '1px solid #FF4646';
       document.getElementById('trescLabel').style.color = '#FF4646';
    } else if ((m==false)&&(t==true)) {
        document.getElementById('email').style.backgroundColor = '#FCC4BA';
        document.getElementById('email').style.border = '1px solid #FF4646';
        document.getElementById('emailLabel').style.color = '#FF4646';
    } else if ((m==false)&&(t==false)) {
       document.getElementById('tresc').style.backgroundColor = '#FCC4BA';
       document.getElementById('email').style.backgroundColor = '#FCC4BA';
       document.getElementById('email').style.border = '1px solid #FF4646';
       document.getElementById('emailLabel').style.color = '#FF4646';
       document.getElementById('tresc').style.border = '1px solid #FF4646';
       document.getElementById('trescLabel').style.color = '#FF4646';
    }
}