var scrollStep = 20;
var scrollSpeed = 80;
var scrollContentId = "go";
var ScrollContainerId = "wrap";

var scrollTimerId = 0;
function scrollGoLeft() {
	scrollTimerId = window.setInterval("scrollContent(" + scrollStep + ")", scrollSpeed);
}

function scrollGoRight() {
	scrollTimerId = window.setInterval("scrollContent(-" + scrollStep + ")", scrollSpeed);
}

function scrollStop() {
	window.clearInterval(scrollTimerId);
}

function scrollContent(step) {
	var m_Content = document.getElementById(scrollContentId);
	var m_Container = document.getElementById(ScrollContainerId);

	m_Content.style.left = (m_Content.offsetLeft + step) + "px";
	if (step > 0 && m_Content.offsetLeft >= 0) {	// go right
		scrollStop();
		m_Content.style.left = "0px";
		return;
	}
	if (step < 0 && m_Content.offsetLeft <= (m_Container.offsetWidth - m_Content.offsetWidth)) {	// go left
		scrollStop();
		m_Content.style.left = (m_Container.offsetWidth - m_Content.offsetWidth) + "px";
		return;
	}
}

function initNavLocation(index) {
    var m_Content = document.getElementById(scrollContentId);
	var m_Container = document.getElementById(ScrollContainerId);
    if(m_Content)
	{
		m_Content.style.left=  (-85*(index-1))+"px";

		if(m_Content.offsetLeft <= (m_Container.offsetWidth - m_Content.offsetWidth))
		{
			m_Content.style.left = (m_Container.offsetWidth - m_Content.offsetWidth) + "px";
		}
	}
}