nowPos = 0;

function moveTicker(down){
	var theImages = document.getElementById('slideshow');
	
	if (down) {
		if (nowPos >= -770) {
			nowPos = nowPos - 110;
			theImages.style.marginTop = nowPos+'px';			
			clearInterval(); 
		} else {
			nowPos = nowPos;
		}
	} else {
		if (nowPos < 0) {
			nowPos = nowPos + 110;
			theImages.style.marginTop = nowPos+'px';
			clearInterval();

		} else {
			nowPos = nowPos;
		}
	}
	
	if (nowPos < 0) {
		var scrollDwnDiv = document.getElementById('scrollUp');
		scrollDwnDiv.style.backgroundImage = 'url("img/scrollUp.gif")';
	} else {
		var scrollDwnDiv = document.getElementById('scrollUp');
		scrollDwnDiv.style.backgroundImage = 'url("img/scrollUpFade.gif")';
	}
	if (nowPos >= - 770) {
		var scrollUpDiv = document.getElementById('scrollDwn');
		scrollUpDiv.style.backgroundImage = 'url("img/scrollDwn.gif")';
	} else {
		var scrollUpDiv = document.getElementById('scrollDwn');
		scrollUpDiv.style.backgroundImage = 'url("img/scrollDwnFade.gif")';
	}
}