function moveToPrevious()
{
	if(currentImage > 0)
	{
		new Effect.Move('imageBoxInsideMod', { x: 84, y: 0, afterFinish: function(e) { currentImage--; }, transition: Effect.Transitions.sinoidal, queue: { position: 'end', scope: 'global', limit: 1 }});
	}
	if(currentImage < 2)
	{
		document.getElementById('previousimage2').style.visibility = 'hidden'; 
	}
	
	document.getElementById('nextimage2').style.visibility = 'visible'; 
}

function moveToNext()
{
	if(currentImage < totalImages-viewSize)
	{
		new Effect.Move('imageBoxInsideMod', { x: -84, y: 0, afterFinish: function(e) { currentImage++; }, transition: Effect.Transitions.sinoidal, queue: { position: 'end', scope: 'global', limit: 1 }});
	}
		document.getElementById('previousimage2').style.visibility = 'visible'; 
		
	if(currentImage > totalImages2){
		document.getElementById('nextimage2').style.visibility = 'hidden'; 
	}
}