复制代码 代码如下:

function hb(){
var tab = document.getElementById(\"subtable\");
var maxCol = 3, val, count, start;
var ys=\"\";
for(var col = maxCol-1; col >= 0 ; col--) {
count = 1;
val = \"\";
for(var i=0; i<tab.rows.length; i++){
if(val == tab.rows[i].cells[col].innerHTML){
count++;
}else{
if(count > 1){
//合并
start = i - count;
if(ys==\"#00FFFF\"){
ys=\"#EEEE00\";
}else{
ys=\"#00FFFF\";
}
tab.rows[start].cells[col].rowSpan = count;
tab.rows[start].cells[1].style.backgroundColor=ys;//改变颜色
// ys=\"#EEEE00\";
// tab.rows[i].cells[1].style.backgroundColor=\"#00FFFF\";//改变颜色绿色
for(var j=start+1; j<i; j++){ //
tab.rows[j].cells[col].style.display = \"none\";
tab.rows[j].removeChild(tab.rows[j].cells[col]);
}
count = 1;
}
val = tab.rows[i].cells[col].innerHTML;
}
}

if(count > 1 ){ //合并，最后几行相同的情况下
start = i - count;
tab.rows[start].cells[col].rowSpan = count;
for(var j=start+1; j<i; j++) {
tab.rows[j].removeChild(tab.rows[j].cells[col]);
}
}
}
}