Create a loading spinner for report regions

Hi all,
I have a page in apex that has many report regions on it and it can take some time to load. What I would like to achieve is the following:
The page loads immediately each region should have no data but in the header of the region there should be a spinner which basically lets the user know that data is still to be loaded.
Once there is data then the spinner should be made invisible and the appropriate region should display its data.
I am using apex 3.1 on oracle10g.
Any help would be most appreciated.

I found some good advice at the following:
Re: AJAX Report Regions
I can get the following to work:
gReturn = get.get(null,'<htmldb:BOX_BODY>','</htmldb:BOX_BODY>');
but not
get.GetAsync(f_AsyncReturn);
The second method appears to query for the data but returns a blank region. Any ideas ?????

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I am new to Apex and I am running into an issue with an report region I am puzzled by. Just a foreword, I'm sure this hack solution will get a good share of facepalms and chuckles from those with far more experience. I welcome suggestions and criticism that are helpful and edifying!
I am on Apex 4.0.2.00.07 running on 10g, I believe R2.
A little background, my customer has asked an Excel spreadsheet be converted into a database application. As part of the transition they would like an export from the database that is in the same format as the current spreadsheet. Because the column count in this export is dynmic based on the number of records in a specific table, I decided to create a temporary table for the export. The column names in this temp table are based on a "name" column from the same data table so I end up with columns named 'REC_NAME A', 'REC_NAME B', etc. (e.g. Alpha Record, Papa Record, Echo Record, X-Ray Record). The column count is currently ~350 for the spreadsheet version.
Because the column count is so large and the column names are dynamic I've run into a host of challenges and errors creating this export. I am a contractor in a corporate environmentm, so making changes to the apex environment or installation is beyond my influence and really beyond what could be justified by this single requirement for this project. I have tried procedures and apex plug-ins for generating the file however the UTL_FILE package is not available to me. I am currently generating the SQL for the query in a function and returning it to the report region in a single column (the user will be doing a text-to-column conversion later). The data is successfully being generated, however, the sql for the headers is where I am stumped.
At first I thought it was because I returned both queries as one and they were joined with a 'union all'. However, after looking closer, the SQL being returned for the headers is about +10K+ characters long. The SQL being returned for the data is about +14k+. As mentioned above, the data is being generated and exported, however when I generate the SQL for the headers I am receiving a report error with "ORA-01489: result of string concatenation is too long" in the file. I am puzzled why a shorter string is generating this message. I took the function from both pages and ran them in a SQL command prompt and both return their string values without errors.
I'm hopeful that it's something obvious and noobish that I'm overlooking.
here is the code:
data SQL function:
declare
l_tbl varchar2(20);
l_ret varchar2(32767);
l_c number := 0;
l_dlim varchar2(3) := '''|''';
begin
l_tbl := 'EXPORT_STEP';
l_ret := 'select ';
for rec in (select column_name from user_tab_columns where table_name = l_tbl order by column_id)
loop
    if l_c = 1 then
        l_ret := l_ret || '||' || l_dlim || '|| to_char("'||rec.column_name||'")';
    else
        l_c := 1;
        l_ret := l_ret || ' to_char("' || rec.column_name || '")';
    end if;
end loop;
    l_ret := l_ret || ' from ' || l_tbl;
dbms_output.put_line(l_ret);
end;header sql function:
declare
l_tbl varchar2(20);
l_ret varchar2(32767);
l_c number := 0;
l_dlim varchar2(3) := '''|''';
begin
l_tbl := 'EXPORT_STEP';
for rec in (select column_name from user_tab_columns where table_name = l_tbl order by column_id)
loop
    if l_c = 1 then
        l_ret := l_ret || '||' || l_dlim || '||'''||rec.column_name||'''';
    else
        l_c := 1;
        l_ret := l_ret || '''' || rec.column_name || '''';
    end if;
end loop;
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dbms_output.put_line(l_ret);
end;-------
EDIT: just a comment on the complexity of this export, each record in the back-end table adds 12 columns to my export table. Those 12 columns are coming from 5 different tables and are the product of a set of functions calculating or looking up their values. This is export is really a pivot table based on the records in another table.
Edited by: nimda xinu on Mar 8, 2013 1:28 PM

Thank you, Denes, for looking into my issue. I appreciate your time!
It is unfortunately a business requirement. My customer has required that the data we are migrating to this app from a spreadsheet be exported in the same format, albeit temporarily. I still must meet the requirement. I'm working around the 350 columns by dumping everything into a single column, which is working for the data, however, the headers export is throwing the 01489 error. I did run into the error you posted in your reply. I attempted to work around it with the clob type but eneded up running into my string concatentation error again.
I'm open to any suggestions at this point given that I have the data. I'm so close because the data is exporting, but because the columns are dynamic, the export does me little good without the headers to go along with it.

SQL Query Too Large For Report Region

Oracle Friends:
I have a SQL query that is 24,000 characters long. APEX fails when I try to create a report using this query, probably because it is too long.
I get an "ORA-01461: can bind a LONG value only for insert into a LONG column" after I paste it and try to go to the next page.
Any ideas? I can't make my query any smaller without creating intermediate tables.
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We have an app which has as it's "Home Page" a portal-style page. The "portlets" are separate regions. Some of these regions are HTML forms, but most are report regions, invariably with PL/SQL returning the SQL query.
On our dev box this portal renders fine, in no more than 5 seconds (acceptable). On the production box a couple of the portlets go crazy, usually taking between 1-2 minutes each. I know this because I added the #TIMING# string to each region footer. The portal page has a META tag to refresh every 120 seconds.
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