var divTop = 0;
var divBottom;
var divLeft = 0;
var divRight;
var t;
var stop = true;
var filmWidth = 920;
var filmHeight = 200;
var speed = 1;
function moveLeft(){
	filmObj = document.getElementById('film');
	var newLeft = filmObj.offsetLeft - 2;
	filmObj.style.left = newLeft + 'px';
	var movedLeft = Math.abs(filmObj.offsetLeft);
	var firstWidth = filmObj.firstChild.offsetWidth;
	if(movedLeft >= firstWidth) {
		filmObj.appendChild(filmObj.firstChild);
		filmObj.style.left = parseInt(filmObj.offsetLeft + movedLeft) + 'px';
	}
	clearTimeout(t);
	t = setTimeout("moveLeft()", speed);
}
function moveStop(){
	clearTimeout(t);
	stop = true;
}
function moveRight(){
	filmObj = document.getElementById('film');
	var newLeft = filmObj.offsetLeft + 2;
	newLeft = (newLeft == 0) ? newLeft++ : newLeft;
	filmObj.style.left = newLeft + 'px';
	var movedLeft = filmObj.offsetLeft;
	var lastObj = filmObj.childNodes[filmObj.childNodes.length - 1];
	var lastWidth = lastObj.offsetWidth;
	if(movedLeft > 0) {
		filmObj.insertBefore(lastObj, filmObj.firstChild);
		filmObj.style.left = parseInt(filmObj.offsetLeft - lastWidth) + 'px';
	}
	clearTimeout(t);
	t = setTimeout("moveRight()", speed);
}
function initFilm(){
	filmObj = document.getElementById('film');
	divRight = divLeft + filmObj.offsetWidth;
	filmObj.style.position = "absolute";
	filmObj.parentNode.style.width = filmWidth + 'px';
	filmObj.parentNode.style.height = filmHeight + 'px';
	var parentWidth = 0;
	for(i=0; i<filmObj.childNodes.length; i++){
		if(filmObj.childNodes[i].tagName) {
			parentWidth += filmObj.childNodes[i].offsetWidth;
		}else{
			filmObj.removeChild(filmObj.childNodes[i]);
			i--;
		}
	}
	filmObj.style.width = parentWidth + 'px';
	filmObj.parentNode.parentNode.style.width = filmWidth + 'px';
	filmObj.parentNode.parentNode.style.height = filmHeight + 'px';
}
function showScroller(){
	document.getElementById('show_scroller').style.visibility='visible';
	document.getElementById('show_scroller').style.display='block';
}
function ChangeMainImg(mainImg){
	document.getElementById('mainImg').src = eval(mainImg);
}