var j1 = [{id:'1001',name:'a'},{id:'1002',name:'b'},{id:'1003',name:'c'}];
var ids = "1003,1001,1002";
function getResultByOrder(array,order)
{
 var result = [];
 for(var k=0;k<order.split(",").length;k++)
 {
  for(var i=0;i<array.length;i++)
  {
    if(array[i].id==order.split(",")[k])
    {
      result[result.length] = array[i];
      break;
    } 
  }
 }
 return result;
}
//调用即可
getResultByOrder(j1,ids)