Call javaScript used by Zen Component Page / Zen Page from a external javascript

I have edited the Clinical Viewer portal. 

I made a new timeline with Patient Encounters. Did this using a external javascript outside Zen Component used for current chartbook.

So, i need to call function inside Zen Component. When i choose any encounter in current timeline is invoked a function, is name is SelectOneEp(' PatientID HERE ',''), i need help how to invoke this method in Zen Component estructure.

I already did the call from external JavaScript.