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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Untitled</title>
<script language="JavaScript">
function unitTable() {
var tb = document.getElementById("tbName");
var i=0;
var j=0;
var rowCount = tb.rows.length; // 行数
var colCount=tb.rows[0].cells.length; // 列数
alert(colCount);
// 为每个单元格命名
for (i=0;i<rowCount;i++){
for (j=0;j<colCount;j++){
tb.rows[i].cells[j].id="tb__" + i.toString() + "_" + j.toString();
}
}
obj1=document.getElementById("tb__0_0");
obj4=document.getElementById("tb__1_0");
var count = parseFloat(obj4.innerHTML);
//alert("第一次:" + count);
for(j=1;j<colCount;j++){
obj2=document.getElementById("tb__0_"+j.toString());
if (obj1.innerHTML == obj2.innerHTML){
obj3=document.getElementById("tb__1_"+j.toString());
count += parseFloat(obj3.innerHTML);
//alert("中间过程" + count);
obj1.colSpan++;
obj2.parentNode.removeChild(obj2);
obj4.colSpan++;
obj3.parentNode.removeChild(obj3);
if(j == (colCount -1)) {
obj4.innerHTML = count;
}
} else {
obj1=document.getElementById("tb__0_"+j.toString());
obj4.innerHTML = count;
obj4=document.getElementById("tb__1_"+j.toString());
count = parseFloat(obj4.innerHTML);
}
}
}
</script>
</head>
<body>
<table border="1px" name="tb2" id="tb2">
<tr>
<td>
aaa
</td>
</tr
</table>
<table border="1" name="tbName" id="tbName">
<tr>
<td>AAA</td>
<td>AAA</td>
<td>AAA</td>
<td>BBB</td>
<td>BBB</td>
<td>CCC</td>
<td>CCC</td>
<td>CCC</td>
<td>CCC</td>
</tr>
<tr>
<td>10</td>
<td>10</td>
<td>15</td>
<td>25</td>
<td>20</td>
<td>5</td>
<td>5</td>
<td>5</td>
<td>5</td>
</tr>
<tr>
<td>王</td>
<td>王</td>
<td>王</td>
<td>王</td>
<td>王</td>
<td>王</td>
<td>王</td>
<td>王</td>
<td>王</td>
</tr>
</table>
<input type="button" onclick="unitTable()" value="YES"/>
</body>
</html>