var sliderPos=8;
var inMove=0;

function moveToPrevious() {
  if( sliderPos>1 && inMove==0 ) {
    inMove=1;
    new Effect.Move( 'front-latest-pics-inner',{ duration: 0.8,x:123,y:0,transition:Effect.Transitions.sinoidal } );
    sliderPos--;
    setTimeout( stopMove,900 );
  }
}  

function moveToNext() {
  if( sliderPos<15 && inMove==0 ) {
    inMove=1;
    new Effect.Move( 'front-latest-pics-inner',{ duration: 0.8,x:-123,y:0,transition:Effect.Transitions.sinoidal } );
    sliderPos++;
    setTimeout( stopMove,900 );
  }
}

function stopMove() {
  inMove=0;
}