var browser	=	navigator.userAgent.toLowerCase(); 
browsertype=0;
if (browser.indexOf('mozilla')!=-1)		{browsertype=1};
if (browser.indexOf('msie')!=-1)		{browsertype=2};
if (browsertype > 0){
var pos = 0;
var end = 800;
var Defaultspeed = 2;
var speed = Defaultspeed;
var scrollOn = (window.scroll) ? true : false;
var Stop = true;

scrollWindow()
}
	function scrollWindow()
{
if (browsertype > 0){
        if (scrollOn && !Stop)
        {
                pos += speed;
                window.scroll(pos,0);
                
								
								if (pos < 0)
                {
                        pos = 0;
                        speed = -speed;
                        Stop = true;
                }
                else if (pos > end)
                {
                        pos = end - 1;
                        speed = -speed;
                        Stop = true;
                				self.location.href = "/piercing/piercing_start.html";
								}
                setTimeout('scrollWindow()', 1)
								
        }
}
}

function startScroll()
{
if (browsertype > 0){
	if (window.innerWidht)
	{
		pos = window.pageYOffset
	}
	else if (document.body)
	{
		pos = document.body.scrollTop
	}
	if (!speed) speed = Defaultspeed;
	Stop = false;
	scrollWindow();
}
}

function NewSpeed(amount)
{
if (browsertype > 0){
	speed += amount;
	if (Stop) startScroll();
	if (!speed) Stop = true;
}
}

function StartStop()
{
{
	Stop = (Stop) ? false : true;
	if (!Stop) startScroll()
}
}