判断checkbox 是否有选中的代码
delete_form为表单的name属性
deletechoose为checkbox属性
Java代码
var len = document.delete_form.deletechoose.length;
var checked = false;
for (i = 0; i < len; i++)
{
if (document.delete_form.deletechoose[i].checked == true)
{
checked = true;
break;
}
}
if (!checked)
{
alert("你至少要选择一条记录!");
return false;
}