Rhino Javascript

Hi,

I'm working on automating a flow and need some support in writing Rhino Javascript to process some data.

The data is coming in as XML, below is the sample :

<Data>
<AvailablePlanGroups>
<PlanGroupDetails>
<PlanGroup>ABC</PlanGroup>
<PlanGroupID>10A</PlanGroupID>
<PlanGroupSortOrder>670</PlanGroupSortOrder>
</PlanGroupDetails>
<PlanGroupDetails>
<PlanGroup>DEF</PlanGroup>
<PlanGroupID>15B</PlanGroupID>
<PlanGroupSortOrder>11</PlanGroupSortOrder>
</PlanGroupDetails>
<PlanGroupDetails>
<PlanGroup>GHI</PlanGroup>
<PlanGroupID>21C</PlanGroupID>
<PlanGroupSortOrder>200</PlanGroupSortOrder>
</PlanGroupDetails>
</AvailablePlanGroups>
</Data>

we need to write a Rhino Javascript to sort that data in ascending based on 'GroupSortOrder' & store the array index in a variable.

Example :
Current Array index = [0,1,2]

Array index after sorting = [1,2,0]


followed by we need to pass those value to create a JSON object.

It's a few lines of script but I'm not an expert.So looking for a expert to assist.