Need to Change Interactive Report Region Title When Refreshed

 I have code working to periodically refresh a Interactive Report on a page. I have the following code in the page header:

<script type="text/javascript">

//automatic reload IRR 

function fnc_reloadIRR () {

 gReport.search('SEARCH'); 

 window.setTimeout(fnc_reloadIRR, 10000);

};

 

// this means the code execution starts after 10 seconds

 window.setTimeout(fnc_reloadIRR, 10000);

</script>

This is working great. The title of the report region is "Intraday Color Code Test - &P1_LAST_REFRESH_TIME."

I have a hidden page item named P1_LAST_REFRESH_TIME on the page that contains the last time the report was refreshed. I am struggling with resetting this value when the report region is refreshed. ( May not even need this item!)