Jquery checkbox級聯選擇，

/*
checkbox 上需要添加index字段 格式如下：父節點為1則子節點為1_1，1_2 以此類推
*/
$j(function($) {
$(“:checkbox”).click(function(){
var index = $(this).attr(“index”);
$(“:checkbox[index^="+index+"]“).attr(“checked”,$(this).is(“:checked”));
var parent_index = index.substring(0,index.length – 2);
$(“:checkbox[index="+parent_index+"]“).attr(“checked”,false);
var parentIsCheck = false;
$(“:checkbox[index^="+parent_index+"]“).each(function(i){
if($(this).is(“:checked”)){
parentIsCheck = true;
}
});
$(“:checkbox[index="+parent_index+"]“).attr(“checked”,parentIsCheck);
var parent_parent_index = index.substring(0,parent_index.length – 2);
var parent_parent_is_check = false;
$(“:checkbox[index="+parent_parent_index+"]“).attr(“checked”,parent_parent_is_check);
$(“:checkbox[index^="+parent_parent_index+"]“).each(function(i){
if($(this).is(“:checked”)){
parent_parent_is_check = true;
}
});
$(“:checkbox[index="+parent_parent_index+"]“).attr(“checked”,parent_parent_is_check);
});
});

關鍵在於index 這個字段 — js代碼只不過是判定而已~~~
[html] view plaincopyprint?
<dt>
<img src=”/crm/images/tree/tree_node_e_2.gif” /><img src=”/crm/images/tree/folder_off.gif” />
<span class=”text-g”>
<input type=”checkbox” name=”functionIds” value=’1′ style=”margin:3px 0 0;” index=’1′/>
<span style=”margin-left:3px”>建立活動</span>
</span>
</dt>
<dt>
<img src=”/crm/images/tree/tree_vert.gif” /><img src=”/crm/images/tree/tree_node_n_0.gif” />
<img src=”/crm/images/tree/item.gif” />
<input type=”checkbox” name=”functionIds” value=’2′ style=”margin:3px 0 0;” index=’1_1′/>
<span style=”margin-left:3px”>設定客戶群</span>：
<input type=”checkbox” name=”functionIds” value=’3′ style=”margin:3px 0 0;” index=’1_1_1′ />基金
<input type=”checkbox” name=”functionIds” value=’4′ style=”margin:3px 0 0;” index=’1_1_2′ />信用卡
<input type=”checkbox” name=”functionIds” value=’5′ style=”margin:3px 0 0;” index=’1_1_3′ />黃金存摺
</dt>
<dt>
<img src=”/crm/images/tree/tree_vert.gif” /><img src=”/crm/images/tree/tree_node_n_0.gif” />
<img src=”/crm/images/tree/item.gif” />
<input type=”checkbox” name=”functionIds” value=’6′ style=”margin:3px 0 0;” index=’1_2′/>
<span style=”margin-left:3px”>訂定活動</span>：
<input type=”checkbox” name=”functionIds” value=’7′ style=”margin:3px 0 0;” index=’1_2_1′ />基金
<input type=”checkbox” name=”functionIds” value=’8′ style=”margin:3px 0 0;” index=’1_2_2′ />信用卡
<input type=”checkbox” name=”functionIds” value=’9′ style=”margin:3px 0 0;” index=’1_2_3′ />黃金存摺
</dt>
<dt>
<img src=”/crm/images/tree/tree_vert.gif” /><img src=”/crm/images/tree/tree_node_e_0.gif” />
<img src=”/crm/images/tree/item.gif” />
<input type=”checkbox” name=”functionIds” value=’10′ style=”margin:3px 0 0;” index=’1_3′/>
<span style=”margin-left:3px”>活動計劃</span>
</dt>
<dt>