function request(url, onSuccess, paras, method, isAsync, isMask) {
$.ajax({type:method,url:url,async:isAsync,data:paras,success:function(request){onSuccess(request,isMask);},error:function(e) {if(isMask)
$('#div_mask').unblock();},beforeSend:function(e){if(isMask)$('#div_mask').block({message:'

'});}});
}
success:function(request){onSuccess(request,isMask);},error:function(e) {if(isMask)$('#div_mask').unblock();},beforeSend:function(e){if(isMask)
$('#div_mask').block({message:'

'});}
2、error是错误的时候去调的方法(error:function(e) {if(isMask)$('#div_mask').unblock();})。unblock()是jquery.blockUI.js的方法,当出错的时候关掉滚动。