function DelInfo( SaleBillID )
   {
    if( confirm(是否真的要删除当前记录？) )
    {
     var objXMLHTTP = new ActiveXObject(MICROSOFT.XMLHTTP);
     objXMLHTTP.open(GET, Sale_ListInfo_Del.asp?SaleBillID=+ SaleBillID, false);
     objXMLHTTP.send();
     var ReturnHtml = objXMLHTTP.ResponseText;
     if( ReturnHtml == ) location.href( location.href );
     else alert( ReturnHtml );
    }
   }



<a href='javascript:DelInfo(164)'> 删除</a>