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......
}
}