Trigger next post in Jquery slider

This is the code I am looking at: The code snippet from a slider plugin, calls back the first slide when the slideshow is over. I instead want the last slide to call next wordpress post. Is there a way to do this?

getNext : function( base ) {
        base = typeof base === 'number' ? base : this.getIndex();
        return base === this.getDataLength() - 1 ? 0 : base + 1;
    },

next : function() {
        if ( this.getDataLength() > 1 ) {
            this.show( this.getNext(), false );
        }
        return this;
    },