//在动态创建的表中的每一行中单击按钮以检索相应行的列值
var rowCount = result.rows.length;// to count numrows coming from database
for(var j=1; j<=rowCount; j++)
{
var row = result.rows.item(j-1); // creating rowindex in the table
exercise =row.Exercise; // value from database
time= row.Time; // value from database
userid = row.UserId // value from database
var table = document.getElementById("check"); // table id
var row1 = table.insertRow(j); // Insert Row To Table
var cell1 = row1.insertCell(0);
var element1 = document.createElement("input");
element1.type = "text";
element1.value = exercise;
cell1.appendChild(element1);
var cell2 = row1.insertCell(1);
var element2 = document.createElement("input");
element2.type = "text";
element2.value = time;
cell2.appendChild(element2);
var cell3= row1.insertCell(2);
var element3 = document.createElement("input");
element3.type = "button";
element3.value = "edit";
var cell4= row1.insertCell(3);
var element4= document.createElement("input");
element4.value = userid;
cell4.appendChild(element4);
cell4.style.dispalay="none";
element3.addEventListener('click', function () {
alert('event fired!');
// get the userid value of the clicked button as an alert
});
}