动态新增删除表格行（复制整行）

var rowIndex = 0;function addLine(obj) {var objSourceRow = obj.parentNode.parentNode;var objTable = obj.parentNode.parentNode.parentNode.parentNode;if (obj.value == '增加') {rowIndex++;var objRow = objTable.insertRow(rowIndex);var objCell;objCell = objRow.insertCell(0);objCell.innerHTML = objSourceRow.cells[0].innerHTML;objCell = objRow.insertCell(1);objCell.innerHTML = objSourceRow.cells[1].innerHTML;objCell = objRow.insertCell(2);objCell.innerHTML = objSourceRow.cells[2].innerHTML.replace(/增加/, '删除');} else {objTable.lastChild.removeChild(objSourceRow);rowIndex--;}}