Memory Leakage in IE7 & firefox when using SpryData

Hi,
I am trying to figure out what have I done wrong in the code
below so that the memory is not freeing in the browser and it keeps
growing until I close it. I am polling every 3 seconds, and each
time it polls, the memory increases.
I appreciate your help.
<script type="text/javascript">
var dsresults = new
Spry.Data.XMLDataSet("/etradetest/ar/accounts/portfoliogen.jsp",
"/RESULTS/PRODUCT",{useCache:false,loadInterval:3000})
var dstotals = new
Spry.Data.XMLDataSet("/etradetest/ar/accounts/portfoliogen.jsp",
"/RESULTS/TOTALS",{useCache:false,loadInterval:3000});
</script>
<div spry:region="dsresults dstotals"
class="SpryHiddenRegion">
<table border="1" width="100%" style="font-size:11px;"
cellspacing="1" cellpadding="4" >
<tr>
<td width="150px"
style="font-size:13px;font-weight:bold;text-align:right;background-color:#000;color:
#FFF"> {dstotals::@t4}</td>
<td width="80px"
style="font-weight:bold;text-align:left;color: #0066FF"
>الرصيد
المحجوز</td>
<td width="150px"
style="font-size:13px;font-weight:bold;text-align:right;background-color:#000;color:
#FFF">{dstotals::@t5}</td>
<td width="75px"
style="font-weight:bold;text-align:left;color:
#0066FF">الرصيد
النقدي</td>
<td width="150px"
style="font-size:13px;font-weight:bold;text-align:right;background-color:#000;color:
#FFF;" >{dstotals::@t6}</td>
<td dir="RTL" width="50px"
style="font-weight:bold;text-align:right;color:
#0066FF;">إجمالي</td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0"
cellpadding="2" >
<thead>
<tr class="dynamicportfolio">
<th>الشركة</th>
<th>الكمية</th>
<th>الكمية المعر&#1 608;ضة</th>
<th>الكمية المتو&#1 601;رة</th>
<th>معدل التكلفة</t h>
<th>آخر</th>
<th>إجمالي التكل&#1 601;ة</th>
<th>القيمة
السوقية</th>
<th>الربح/
الخسارة</th>
</tr>
</thead>
<tr spry:repeat="dsresults" align="right">
<td spry:even="odd" spry: spry:odd="even"><a
style="color:#FFF;font-size:14px"
href="{NAME/@href}">{NAME}</a></td>
<td spry:even="odd" spry:odd="even">{QTY}</td>
<td spry:even="odd"
spry:odd="even">{OUTSTANDUNITS}</td>
<td spry:even="odd"
spry:odd="even">{AVAILABLEUNITS}</td>
<td spry:even="odd"
spry:odd="even">{AVGCOST}</td>
<td spry:even="odd"
spry:odd="even">{LASTPRICE}</td>
<td spry:even="odd"
spry:odd="even">{STOCKCOST}</td>
<td spry:even="odd"
spry:odd="even">{MARKETVALUE}</td>
<td spry:even="odd" spry:odd="even"
spry:if="'{GAINLOSS/@style}'.match(/^RED$/);" style="color:
red;">{GAINLOSS}</td>
<td spry:even="odd" spry:odd="even"
spry:if="'{GAINLOSS/@style}'.match(/^GREEN$/);" style="color:
green;">{GAINLOSS}</td>
</tr>
<tr class="footer">
<td colspan="6" align="right" ></td>
<td align="right">{dstotals::@t1}</td>
<td align="right" >{dstotals::@t2}</td>
<td align="right">{dstotals::@t3}</td>
</tr>
</table>

this is the data being returned from portfoliogen.jsp:
<RESULTS>
<PRODUCT>
<NAME
href="javascript:popupWindow('/etradetest/ar/product/productdetail.jsp?productid=2350&amp ;productname=StockA">StockA</NAME>
<QTY>1</QTY>
<PLEDGEDUNITS>0</PLEDGEDUNITS>
<OUTSTANDUNITS>0</OUTSTANDUNITS>
<AVAILABLEUNITS>1</AVAILABLEUNITS
<AVGCOST>25.75</AVGCOST>
<LASTPRICE>28.25</LASTPRICE>
<STOCKCOST>25.75</STOCKCOST>
<MARKETVALUE>28.25</MARKETVALUE>
<GAINLOSS style="GREEN">2.50</GAINLOSS>
</PRODUCT>
<PRODUCT>
<NAME
href="javascript:popupWindow('/etradetest/ar/product/productdetail.jsp?productid=5110&amp ;productname=StockB)"
>StockB</NAME>
<QTY>2</QTY>
<PLEDGEDUNITS>0</PLEDGEDUNITS>
<OUTSTANDUNITS>0</OUTSTANDUNITS>
<AVAILABLEUNITS>2</AVAILABLEUNITS>
<AVGCOST>23.75</AVGCOST>
<LASTPRICE>14.50</LASTPRICE>
<STOCKCOST>47.50</STOCKCOST>
<MARKETVALUE>29.00</MARKETVALUE>
<GAINLOSS style="RED">-18.50</GAINLOSS>
</PRODUCT>
<TOTALS t1="73.25" t2="57.25" t3=" <Font
color="#E42217">-16.00</Font>"
t4="0.00" t5="26.75" t6="84.00"/>
</RESULTS>
This is the page that is using the spry:
<html>
<head>
<title>فالكم
للخدمات
المالية</title>
<script language="javascript">
if(history.length>0)history.go(+1);
</script>
<script src="/etradetest/lib/xpath.js"
type="text/javascript"></script>
<script src="/etradetest/lib/SpryData.js"
type="text/javascript"></script>
<script type="text/javascript">
var dsresults = new
Spry.Data.XMLDataSet("/etradetest/ar/accounts/portfoliogen.jsp",
"/RESULTS/PRODUCT",{useCache:false,loadInterval:3000})
var dstotals = new
Spry.Data.XMLDataSet("/etradetest/ar/accounts/portfoliogen.jsp",
"/RESULTS/TOTALS",{useCache:false,loadInterval:3000});
</script>
<body leftmargin="3" topmargin="0" rightmargin="2"
bgcolor="#000">
<div spry:region="dsresults dstotals"
class="SpryHiddenRegion" DIR="RTL">
<table border="1" width="100%" style="font-size:11px;"
cellspacing="1" cellpadding="4">
<tr>
<td width="50px"
style="font-weight:bold;text-align:right;color:
#0066FF;">إجمالي</td>
<td width="150px"
style="font-size:13px;font-weight:bold;text-align:right;background-color:#000;color:
#FFF;" >{dstotals::@t6}</td>
<td width="75px"
style="font-weight:bold;text-align:left;color:
#0066FF">الرصيدالنقد&#1 610;</td>
<td width="150px"
style="font-size:13px;font-weight:bold;text-align:right;background-color:#000;color:
#FFF">{dstotals::@t5}</td>
<td width="80px"
style="font-weight:bold;text-align:left;color: #0066FF"
>الرصيد
المحجوز</td>
<td width="150px"
style="font-size:13px;font-weight:bold;text-align:right;background-color:#000;color:
#FFF"> {dstotals::@t4}</td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0"
cellpadding="2" >
<thead>
<tr class="dynamicportfolio">
<th>الشركة</th>
<th>الكمية</th>
<th>الكمية المعر&#1 608;ضة</th>
<th>الكمية المتو&#1 601;رة</th>
<th>معدل التكلفة</t h>
<th>آخر</th>
<th>إجمالي التكل&#1 601;ة</th>
<th>القيمة
السوقية</th>
<th>الربح/
الخسارة</th>
</tr>
</thead>
<tr spry:repeat="dsresults" align="right">
<td spry:even="odd" spry: spry:odd="even"><a
style="color:#FFF;font-size:14px"
href="{NAME/@href}">{NAME}</a></td>
<td spry:even="odd" spry:odd="even">{QTY}</td>
<td spry:even="odd"
spry:odd="even">{OUTSTANDUNITS}</td>
<td spry:even="odd"
spry:odd="even">{AVAILABLEUNITS}</td>
<td spry:even="odd"
spry:odd="even">{AVGCOST}</td>
<td spry:even="odd"
spry:odd="even">{LASTPRICE}</td>
<td spry:even="odd"
spry:odd="even">{STOCKCOST}</td>
<td spry:even="odd"
spry:odd="even">{MARKETVALUE}</td>
<td spry:even="odd" spry:odd="even"
spry:if="'{GAINLOSS/@style}'.match(/^RED$/);" style="color:
red;">{GAINLOSS}</td>
<td spry:even="odd" spry:odd="even"
spry:if="'{GAINLOSS/@style}'.match(/^GREEN$/);" style="color:
green;">{GAINLOSS}</td>
</tr>
<tr class="footer">
<td colspan="6" align="right" ></td>
<td align="right">{dstotals::@t1}</td>
<td align="right" >{dstotals::@t2}</td>
<td align="right">{dstotals::@t3}</td>
</tr>
</table>
</div>
</body>
</html>
Now everything is working as they should be, but it is eating
up memory. Nothing special in the code, just followed the samples
provided by Adobe.
Note that I modified the data by changing the name tag to
StockA and StockB while in fact they are written in Arabic.

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