function formCheck()
    {
         fali = "";

         if (document.obrazac.ime.value == "") fali = fali + "\n- Ime";
         if (document.obrazac.telefon.value == "") fali = fali + "\n- Telefon";
         if (document.obrazac.email.value == "") fali = fali + "\n- E-mail";
         if (fali != "")
            alert("Niste upisali sve potrebne podatke!" + "\n\n" + "Molimo upisite:" + fali)
         else
          document.obrazac.submit();
    }
    
    function formCheck2()
    {
         fali = "";

         if (document.obrazac.ime.value == "") fali = fali + "\n- Ime";
         if (document.obrazac.telefon.value == "") fali = fali + "\n- Telefon";
         if (document.obrazac.email.value == "") fali = fali + "\n- E-mail";

         if (fali != "")
            alert("Niste upisali sve potrebne podatke!" + "\n\n" + "Molimo upisite:" + fali)
         else
          document.obrazac.submit();
    }

    function getQueryString(str) 
    {
        var query = window.location.search.substring(1);
        var vars = query.split("&");
        for (var i=0; i < vars.length; i++) {
            var pair = vars[i].split("=");
            if (pair[0] == str) {
            var output;
                //promjena HR znakova za windows-1250 u Firefoxu
                var replaceWith, replaceTo, i;
                replaceWith = new Array(/%20/g,
                                        /%9E/g,/%9A/g,/%F0/g,/%E8/g,/%E6/g,
                                        /%8E/g,/%8A/g,/%D0/g,/%C8/g,/%C6/g);
                replaceTo = new Array(" ",
                                      "","","","", "",
                                      "","","","", "");
              
                output = pair[1];
                
                for(i=0; i<replaceWith.length; i++) {
                    output = output.replace(replaceWith[i], replaceTo[i]);
                }
                
                return output;
            }
        } 
        //alert('Tekst nije pronaen');
        return false;
    }

    function appendQueryString(param)
    {
        if(getQueryString(param).length > 0)
            document.obrazac.poruka.value = getQueryString(param)+ "\n";
       else
            document.obrazac.poruka.value = "";
    }