function uniteTab(tableId,col) {
//col-- 需要合并單元格的列 1開始
var tb=document.getElementById(tableId);
tb.style.display='';
var i = 0;
var j = 0;
var rowCount = tb.rows.length; // 行數
var colCount = tb.rows[0].cells.length; // 列數
var obj1 = null;
var obj2 = null;
//為每個單元格命名
for (i = 0; i < rowCount; i++) {
for (j = 0; j < colCount; j++) {
tb.rows[i].cells[j].id = "tb__" + i.toString() + "_" + j.toString();
}
}
//合并行
for (i = 0; i < colCount; i++) {
if (i == colLength) break;
obj1 = document.getElementById("tb__0_" + i.toString())
for (j = 1; j < rowCount; j++) {
obj2 = document.getElementById("tb__" + j.toString() + "_" + i.toString());
if (obj1.innerText == obj2.innerText) {
obj1.rowSpan++;
obj2.parentNode.removeChild(obj2);
} else {
obj1 = document.getElementById("tb__" + j.toString() + "_" + i.toString());
}
}
}
//合并列
for (i = 0; i < rowCount; i++) {
colCount = tb.rows[i].cells.length;
obj1 = document.getElementById(tb.rows[i].cells[0].id);
for (j = 1; j < colCount; j++) {
if (j >= colLength) break;
if (obj1.colSpan >= colLength) break;
obj2 = document.getElementById(tb.rows[i].cells[j].id);
if (obj1.innerText == obj2.innerText) {
obj1.colSpan++;
obj2.parentNode.removeChild(obj2);
j = j - 1;
}
else {
obj1 = obj2;
j = j + obj1.rowSpan;
}
}
}
}