function SetCol(Element, Col) {
        if (Element.style)
          Element.style.backgroundColor = Col;
      }
      function CheckForm(Form){
        var ColErr = "#ff6666";
        var ColOK = "";
        var Valid = true;
      if (Form.jmeno.value == ""){
          Valid = false;
          SetCol(Form.jmeno, ColErr);
        } else {
          SetCol(Form.jmeno, ColOK);
        }
      if (Form.prijmeni.value == ""){
          Valid = false;
          SetCol(Form.prijmeni, ColErr);
        } else {
          SetCol(Form.prijmeni, ColOK);
        }
      if (Form.ulice.value == ""){
          Valid = false;
          SetCol(Form.ulice, ColErr);
        } else {
          SetCol(Form.ulice, ColOK);
        }
      if (Form.obec.value == ""){
          Valid = false;
          SetCol(Form.obec, ColErr);
        } else {
          SetCol(Form.obec, ColOK);
        }
      if (Form.psc.value == ""){
          Valid = false;
          SetCol(Form.psc, ColErr);
        } else {
          SetCol(Form.psc, ColOK);
        }
      if (Form.mail.value == ""){
          Valid = false;
          SetCol(Form.mail, ColErr);
        } else {
          SetCol(Form.mail, ColOK);
        }
      if (Form.den.value == "nic"){
          Valid = false;
          SetCol(Form.den, ColErr);
        } else {
          SetCol(Form.den, ColOK);
        }
      if (Form.hodina.value == "nic"){
          Valid = false;
          SetCol(Form.hodina, ColErr);
        } else {
          SetCol(Form.hodina, ColOK);
        }
      if (Form.automat.value == "nic"){
          Valid = false;
          SetCol(Form.automat, ColErr);
        } else {
          SetCol(Form.automat, ColOK);
        }
      if (Form.skoda.value == ""){
          Valid = false;
          SetCol(Form.skoda, ColErr);
        } else {
          SetCol(Form.skoda, ColOK);
        }
      if (!document.hlaForm.nahrada[1].checked == true && Form.predcisli.value == ""){
          Valid = false;
          SetCol(Form.predcisli, ColErr);
        } else {
          SetCol(Form.predcisli, ColOK);
        }
      if (!document.hlaForm.nahrada[1].checked == true && Form.ucet.value == ""){
          Valid = false;
          SetCol(Form.ucet, ColErr);
        } else {
          SetCol(Form.ucet, ColOK);
        }
      if (!document.hlaForm.nahrada[1].checked == true && Form.kod.value == ""){
          Valid = false;
          SetCol(Form.kod, ColErr);
        } else {
          SetCol(Form.kod, ColOK);
        }
      if (!Valid)
          alert("Prosím, vyplňte označená políčka formuláře!");
        return Valid;
    	} 
	
    	  function CheckNumEdit (Edit) {
        var S = Edit.value - 0;
        if ((parseInt (S) == NaN)||
            (parseInt (S)+'' != S)){
            alert('Prosím, zadejte číslo!');
            Edit.focus();
            Edit.select();
        } else
          Edit.value = parseInt (S);
      }    
      function CheckMailEdit (Edit) {
            var re = new RegExp('^.+@.+\..{2,}$');
            if (!re.test(Edit.value)) {
            alert('Prosím, zadejte e-mail správně!');
            document.hlaForm.mail.focus();
            } else
            return true;
      }

        function Prepni(){
        if (document.hlaForm.nahrada[0].checked == true) {
        document.hlaForm.predcisli.disabled = false;
        document.hlaForm.ucet.disabled = false;
        document.hlaForm.kod.disabled = false;
        document.hlaForm.jizdenka.disabled = true;
        document.hlaForm.jizdenka.value = "";
        } else {
        document.hlaForm.predcisli.disabled = true;
        document.hlaForm.predcisli.value = "";
        document.hlaForm.ucet.disabled = true;
        document.hlaForm.ucet.value = "";
        document.hlaForm.kod.disabled = true;
        document.hlaForm.kod.value = "";
        document.hlaForm.jizdenka.disabled = false;
        }
        } 
        
       
      MaxLength = 200;

// Funkce pro kontrolu délky textu
      function TextLenVal (){
        if (document.hlaForm.popis.value.length > MaxLength)
          document.hlaForm.popis.value = document.hlaForm.popis.value.substring (0, MaxLength);

        document.hlaForm.edRem.value = MaxLength - document.hlaForm.popis.value.length;

        document.hlaForm.edTot.value = document.hlaForm.popis.value.length;
      }