gokool2u,
In Splunk 6.5 you can use the <init> element to set or update token values when a dashboard or form opens.
http://docs.splunk.com/Documentation/Splunk/latest/Viz/PanelreferenceforSimplifiedXML#init
http://docs.splunk.com/Documentation/Splunk/6.5.1/Viz/tokens#Set_tokens_on_page_load
Hope this helps.
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