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    function odczytajStyl()
    {
      var tf1 = document.getElementById("tf1");
      var div3 = document.getElementById("div3");
      styl = div3.getAttribute("style");
      tf1.value = styl;
    }
    function przypiszStyl()
    {
      var tf1 = document.getElementById("tf1");
      var div3 = document.getElementById("div3");
      styl = tf1.value;
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    }
    function usuńStyl()
    {
      var div3 = document.getElementById("div3");
      var tf1 = document.getElementById("tf1");
      div3.removeAttribute("style");
      tf1.value = "";
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