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This function parses the current URL's query string and returns it as an object with name/value pairs.  The query string is the part of the URL that contains data to be passed to a web application.  The getQueryStringParms() API allows us to retrieve the parameters passed to Profound UI.

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var parms = getQueryStringParms();
if (parms["mode"] == "test") {  // if mode parameter is equal to "test"
  pui.click("btnExit");  // click the exit button
}

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