Using getElementById to update parent page without reloading

Hi!

I have 2 pages Main.aspx and detail.aspx. The first page is a DIV The second page(detail.aspx) is an IFRAME.
When I click the edit button on the main page, it opens up the Iframe on the bottom.
When I update the individual record in the iframe on the bottom, should update the record on Main.aspx without reloading.

So I use getElementById() to get the values and assign them to the parent document.
The problem occurs when I want to use parent.document.getElementById()   or window.opener.document.getElementById()
here is a snippet.

<SCRIPT language ="javascript" id="UpdateMain">
            function UpdateMain() {
            for (i=0; i < document.all.length; i++)
            //storeid =stid ; customerid = custid  Detailid = checkbox.checked status
            var stid= document.getElementById('txtStoreID').value
            var custid= document.getElementById('TxtCustomerName').value
            var Detailid = document.getElementById('chkcontacted').checked

            var idSearch= window.parent.document.body.id
            //alert("My id is  : " + idSearch + " " )
                  
      //using DHTML document.getElementById Method to update Parent            
      window.parent.document.getElementById('DataGrid1__ctl[i]_IContacted').value=Detailid;
                  alert("The Current Status  For : " + stid + " " + custid + " is " +  Detailid  );
            //using url to update parent.
      //var url = 'Main.aspx?storeid=stid&Customerid=custid&DataGrid1__ctl[i]_IContacted.checked=Detailedid';
      //      location.href=url;
                  }

            </SCRIPT>

Your help is appreciated.
externetAsked:
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ThogekConnect With a Mentor Commented:
The above function looks very confused.  You have three distinct variables you are accessing ('txtStoreID', etc.), the first of which is under a for-statement (no braces means only the first line under the for is looped).  You then later set one of these values to an indexed control in the parent page 'DataGrid1__ctl[i]_IContacted'....  Looks very muddled.

Can you check that this is indeed the exact code that you are running (i.e., that appears in the "View Source" HTML of the page), and post exactly what *is* happening when you run it?
 
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externetAuthor Commented:
There was a typo in the previous message:  'DataGrid1__ctl[i]_IContacted' should have been 'DataGrid1__ctl'+[i]+'_IContacted'.  

This block is now  //using DHTML document.getElementById Method to update Parent
             parent.document.getElementById('DataGrid1__ctl'+[i]+'_IContacted').value=document.getElementById('chkcontacted').checked;

when I click submit in the iframe, the parent is updated but the display in the div  does not refresh. Why?

             
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externetAuthor Commented:
Hello Thogek,
Thanks for your suggestions. I  have had a solution which is as follows:
function UpdateMaster() {
            <!--
            var stid= document.getElementById('txtStoreID').value
            var custid = document.getElementById('txtCustomerID').value
            var chkValue = document.getElementById('chkcontacted').checked
            var currentId = stid + "_" + custid
            parent.document.getElementById(currentId).children[0].checked=chkValue;
            
             }
      -->
      </script>
I had two Issues: The Datagrid control associates itself to the elementid.  So I Inserted a checkbox control within a <span> to maintain my id (stid + "_" + custid) unique and free from the datagrid control.  Every works now as expected.
The second issue as you indicated was my for- statement which you indicated from your reply.  
Again Thanks.
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