js复制行

//复制行
function copyRow(obj) {
    var proTable = document.all.productTab;
    var curRowsindex = obj.parentElement.parentElement.rowIndex;
    var curRow = proTable.rows[curRowsindex];
    var rowHtml = curRow.cloneNode(true);//复制一行
    curRow.parentNode.insertBefore(rowHtml); //curRow(行)
}