Reading "remote desktop resource session variables" from hosted content file (HTML)

Kevin, thank you for response. What I currently do is generate a HTML file and move it to the hosted content (also a configuration file, XML), using an iApp. This HTML file is supossed to run an applet (the code for this applet is already in the HTML when it is created). The applet needs to take authtentication parameters (username and password). The other parameters are stored in the XML file, but I need to add the username and password afterwards, using the credentials of the current user. The user has accessed to the HTML file across the portal access (I have created a new portal access element using the HTML file from the hosted content). Here I need to read somehow the session variables to pass them to the applet when it is about to be launched (that's why I think that maybe javaScript could be a posibility). I don't know if is there a way to read a variable "inside the F5" directly from this HTML file (that actually is stored in the hosted content, therefore inside the APM). I hope it is clearer now, any help would be really appreciated.