其实挺简单的，刚好今天有用到，顺手记一下，以后用就copy好了 .

<script language="javaScript">

//全选或全部不选
function checkall(){
var isChecked=(document.ck.checkAll.checked == true);
var elements=document.ck.elements;
var counter=elements.length;
for(i=0;i<counter;i++){
var element=elements[i];
if(element.type=="checkbox"){
element.checked=isChecked;

}
}
}

//是否有checkbox被选中
function anyChecked(){

var elements=document.ck.elements;
var counter=elements.length;
for(i=0;i<counter;i++){
var element=elements[i];
if(element.checked == true){
return true;
}
}
return false;
}
</script>

<form name="ck" Method="post" action="a.asp" _disibledevent= Split(Request.Form("cb"),",")

for each m in array_key
response.write m
next