function nextMedia(){
    var result = new Array(6);
    result=jsonrpc.slideMedia.getNextMedia();
    
    document.getElementById('mediaBody').innerHTML=result[0];
	document.getElementById('mediaAuthor').innerHTML=result[3];
    document.getElementById('mediaPrevious').innerHTML=result[4];
    document.getElementById('mediaNext').innerHTML=result[5];
}

function previousMedia(){
    var result = new Array(6);
    result=jsonrpc.slideMedia.getPreviousMedia();
    
    document.getElementById('mediaBody').innerHTML=result[0];
	document.getElementById('mediaAuthor').innerHTML=result[3];
    document.getElementById('mediaPrevious').innerHTML=result[4];
    document.getElementById('mediaNext').innerHTML=result[5];
}