asp.net中Repeater结合js实现checkbox的全选/全不选

<input name="CheckAll" type="checkbox" id="CheckAll" value="" onclick="javascript:FormSelectAll(‘form1‘,‘cboxi‘,‘CheckAll‘,this);" />   
//用于选择是否全选的复选框，用javascript函数“FormSelectAll(‘form1‘,‘CheckBox‘,this); ”实现全选效果，具体参数下文在详细解释  
<form id="form1" runat="server"> 
<asp:Repeater ID="RptList" runat="server" > 
<ItemTemplate> 
<input name="cboxi" id="cboxi" runat="server" type="checkbox" value=‘<%# DataBinder.eval_r(Container.DataItem, "F_JobID")%>‘ />   
//使用Repeater 控件绑定checkbox控件，用于选择单项内容  
</ItemTemplate> 
</asp:Repeater>   
</form>

//全选
//formId:目标复选框所在表单
//EleName:目标的复选框name
//CbAllEleName:全选/不全选 的复选框id
function FormSelectAll(formId, EleName,CbAllEleId, e) {
    var Elements = document.getElementById(formId).elements; //获取目标复选框的表单
    for (var i = 0; i < Elements.length; i++) {
        if (Elements[i].type == "checkbox" && Elements[i].name.indexOf(EleName) >= 0) {
            if (document.getElementById(CbAllEleId).checked) {
                Elements[i].checked = e.checked;//全选
            }
            else {
                Elements[i].checked = false;//全不选
            }
            
        }
    }
}

for (int i = 0; i < this.RptList.Items.Count; i++)　     
{  
    HtmlInputCheckBox CB = (HtmlInputCheckBox)this.RptList.Items[i].FindControl("cboxi");    
    if (CB.Checked == true)  
    {  
         //如果此复选框已经选中，那就......
    }  
}