text box value reading using javascript

var dom = document.getElementById("tblDom");
            var len = tblDom.rows.length;
            var iteration = len;
            var row = dom.insertRow(iteration);
            var cell1 = row.insertCell(0);
            var cell2 = row.insertCell(1);
            var cell3 = row.insertCell(2);
            var cell4 = row.insertCell(3);

            cell1.innerHTML = len + 1;

            var element1 = document.createElement('input');
            element1.type = 'text';
            element1.id = 'Text1' + iteration;
            element1.name = 'Text1' + iteration;
            cell1.appendChild(element1);
            
            var element2 = document.createElement('input');
            element2.type = 'text';
            element2.id = 'Text2' + iteration;
            element2.name = 'Text2' + iteration;
           
            cell2.appendChild(element2);
            var element3 = document.createElement('input');
            element3.type = 'text';
            element3.id = 'Text3' + iteration;
         
            element3.name = 'Text3' + iteration;
            cell3.appendChild(element3);