SQL Reporting Services Javascript to change reportviewer page

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I'm using the ReportViewer control in a WebForm. I see from the link below that there is a JavaScript API for interacting with it so you can create your own UI instead of the default toolbar:http://msdn.microsoft.com/en-us/library/dd756405.aspxWhat I don't see is anyway to set the report's current page to implement (first, prev, next, last) commands.How can this be done in JavaScript? I'm currently using VS 2012.