var browserVersion;
var direction;
var scrolltimer;
var panelWidth;

function scrollStart(panel) {
	browserVersion= eval("document.getElementById('contentLayer').style");
	verScroll('right','1');
	panelWidth = panel;
}


function verScroll(dir, spd) {
	scrolltimer = null;
	direction = dir;
	speed = parseInt(spd);
	var x_pos;
	x_pos = parseInt(browserVersion.left);
	
	
	if (direction == "right" && x_pos > -panelWidth) browserVersion.left = (x_pos - (speed)) + 'px';
	else if (direction == "right") browserVersion.left = '0'; 
	if (direction == "left" && x_pos < 0) browserVersion.left = (x_pos + (speed)) + 'px';
	else if (direction == "left") browserVersion.left = '-' + panelWidth + 'px';
	if (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.indexOf("Mac") != -1)
		{
		scrolltimer = setTimeout("verScroll(direction,speed)", 1);
		speed=24;
		}
		else
		{
		scrolltimer = setTimeout("verScroll(direction,speed)", 24);
		}
}

function stopScroll() {
	clearTimeout(scrolltimer);
}

function startAndStop(dir, spd) {
	clearTimeout(scrolltimer);
	verScroll(dir, spd);
}