// JavaScript Document

function light(obj)
{
	obj = document.getElementById(obj);
	obj.style.opacity = 1;
	obj.style.filter = "alpha(opacity=100)";
}

function dark(obj)
{
	obj = document.getElementById(obj);
	obj.style.opacity = .25;
	obj.style.filter = "alpha(opacity=25)";
}

var timeout_id = null;
var scroll_pos = 0;

function scroll_stop()
{
	clearTimeout(timeout_id);
}

function scroll_up()
{
	if(scroll_pos < 0)
	{
		scroll_pos += 5;
		control_div.style.top = scroll_pos+"px";
		timeout_id = setTimeout(scroll_up, 33);
	}
}

function scroll_down()
{
	var max = 450-control_div.offsetHeight;
	if(scroll_pos > max)
	{
		scroll_pos -= 5;
		control_div.style.top = scroll_pos+"px";
		timeout_id = setTimeout(scroll_down, 33);
	}
}

function brand_nav(name)
{
	window.location = "brand.php?p="+name+"&pos="+scroll_pos;
}