I want to get the propetry "code"  in  function "createCode()" to a propety "ValidCode' in Section.

  <script>
  	var code;
        function createCode() {
            code = "";
            var codeLength = 6;
            var checkCode = document.getElementById("checkCode");
            var codeChars = new Array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 
            'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',
            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'); 
            for (var i = 0; i < codeLength; i++) 
            {
                var charNum = Math.floor(Math.random() * 52);
                code += codeChars[charNum];
            }
            if (checkCode) 
            {
                checkCode.className = "code";
                checkCode.innerHTML = code;
            }
  				tools.putParamValue("ValidCode", code);
          
        }
            
      	window.onload=function(){
          createCode();
        }
  </script>   
  <div>
  	  <!--<input  style="float:left;" type="text" id="VerifCode" onblur="validateCode();"  />-->     
     <div class="code" id="checkCode" onclick="createCode()"></div> 
  </div>