CRM2011 Subgrids and JavaScript

I have been thinking of bloging about this topic from last 6 months. I wanted to get an aggregate of numeric/money field in the grid. It is very easy to do, if subgrid contains only one page. But How would you get the aggregate if subgrid has more than 1 pages.

I posted this question on the forums and I never get an answer. I still don't have a solution for this problem.
Anyway....

The following sample code displaying the message box with the aggregate of “Estimated Revenue” field  of the opportunity.ce

function subGridOnload() 
{ 
 //debugger;
 var grid = Xrm.Page.ui.controls.get('Opps')._control;
 var sum =0.00;
 //if  (grid.readyState!="complete") 
 //{ 
 // delay one second and try again. 
 //setTimeout(subGridOnload, 1000); 
 //return; 
 //} 

 if  (grid.get_innerControl()==null)
 { 
  setTimeout(subGridOnload, 1000); 
  return; 
 } 
 else if (grid.get_innerControl()._element.innerText.search("Loading")!= -1)
 {
  setTimeout(subGridOnload, 1000); 
  return;
 }

 var ids = grid.get_innerControl().get_allRecordIds(); 
 var cellValue;
 for(i = 0; i < ids.length; i++) 
 { 
     if (grid.get_innerControl().getCellValue('estimatedvalue', ids[i]) !="")
     { 
       cellValue = grid.get_innerControl().getCellValue('estimatedvalue', ids[i]); 
       cellValue = cellValue.substring(2); 
       cellValue = parseFloat(cellValue);  
       sum = sum + cellValue;
     }
 
 }//end for   
 alert(sum);
}

I also noticed that  grid.readyState!="complete" does not work all the time.  It happens when the control is already loaded but the grid is still retrieving the data. So I changed the code to check if the records are already loaded.
See you guys……