<script>
                xVar = 10;
                yVar = 10;
                maxValue = 998;
                function start(row, col) {
                    node = document.getElementById("wrtabelle1");
                    node.appendChild(createTable(row, col, "tabelle1"), node);
                }
                start(xVar, yVar);
                function random() {
                    return Math.floor((Math.random() * 998) + 1);
                }
                function createTable(row, col, id) {

                    var myTable = document.createElement("table");
                    var mytablebody = document.createElement("tbody");

                    for (var j = 0; j < row; j++) {
                        mycurrent_row = document.createElement("tr");
                        for (var i = 0; i < col; i++) {
                            mycurrent_cell = document.createElement("td");
                            mycurrent_cell.addEventListener("click", function (iii, jjj) {
                                return function () {
                                    if (!myTable.getAttribute("data-locked"))
                                    alert(this.innerHTML+ iii+

                                     jjj);
                                    if (this.innerHTML != Stop) myTable.setAttribute("data-locked", "true");
                                }
                            }(i, j));
                            currenttext = document.createTextNode(random(maxValue));
                            mycurrent_cell.appendChild(currenttext);
                            mycurrent_row.appendChild(mycurrent_cell);
                        }

                        mytablebody.appendChild(mycurrent_row);
                    }

                    myTable.appendChild(mytablebody);
                    myTable.setAttribute("ID", id);
                    return myTable;
                }



                function searchValue(r,i){
                 var rowIndex = r;
                 var cellIndex = i;
                 var value = document.getElementById('tabelle1').rows[rowIndex].cells[cellIndex].innerHTML;
                 alert(value);
                }
            </script>
            <input type="button" name="btnStart2" value="Such" onclick="searchValue(5,5)" />

            <input type="button" name="btnShuffle" value="Mischen" onclick="randomizeTable()" />