循环执行ajax

var HidArray = new Array();
//把所有的hid放到HidArray 
SetSettlement(0);

  function SetSettlement(index)
      {
if(index < HidArray.length)
{
       var id = HidArray[index];
        $("#"+id).html("正在执行.........");
        $.ajax({
            type: "GET",
            url: "xxxxx.ashx?id=" + id ,
            cache:false,
            dataType: "text",

           async: false, //设置为同步
            success: function(data) {
                 $("#"+id).html("执行成功.");
                 SetSettlement(index + 1);
            },
            error: function(XMLHttpRequest, textStatus, errorThrown) {
                    SetSettlement(index + 1);        
             $("#"+id).html("执行失败.")
            
            }
        });
          
      }
}