checkbox 批量选中+其中某个disable

<form name="qform" method="post" action="ebptool_query.jsp">
ID<input name="keyword" type="text" id="keyword" tabindex="1">
by
<select name="keytype" id="keytype" tabindex="2">
  <option>claimID</option>
  <option>itemID</option>
</select>
<input type="submit" name="Submit" value="Query">
<input name="disputeHost_all" type="checkbox" value="ALL" onclick="check_all(this,'disputeHost_checkbox')">
disputeHost
<input name="disputeHost_checkbox" type="checkbox" value="CPS_CLAIM" checked="true" disabled>
CPS_CLAIM
<input name="disputeHost_checkbox" type="checkbox" value="CPS_CLAIM_DETAILS">
CPS_CLAIM_DETAILS
<input name="disputeHost_checkbox" type="checkbox" value="CPS_PAYMENT_TXN">
CPS_PAYMENT_TXN
<input name="disputeHost_checkbox" type="checkbox" value="BES_CPS_AUTODISPOSE_PT">
BES_CPS_AUTODISPOSE_PTK
</form>

 

function check_all(obj,cName)
{
     var checkboxs = document.getElementsByName(cName);
     for(var i=0;i<checkboxs.length;i++)
     {
      if(checkboxs[i].disabled == false){
        checkboxs[i].checked = obj.checked;
      }       
     }
}