Animator Iframe - simple help request !

I'm calling an Rgraph (html) graph from within an iframe in Sencha animator, but I don't want to use an absolute address such as:



file:///C:/Users/Bruce/Desktop/SENCHA/SPHERA%20PROJECT%203/SPHERA%203.animproj/RGraph/demos/P-STOCKS.html



Instead I'd just like to use the last part of the address (relative addressing instead):



RGraph/demos/P-STOCKS.html



..since the RGraph folder is already located in the same folder as the particular Sencha Animation:



Any suggestions as to how to set this up in Sencha Animator's Iframe ?



Been up all night experimenting with this, but to no avail.