var banner;
var owner;
var top;
var strings;
var index;
var table;
var delay;

function StartScrollingBanner(e,s,d)
{
	// initialize global variables.
    delay = d; 
	strings = s;
    index = 0;
    
	// Find the parent table and make sure it has a fixed height. 
	owner = FindTable(e); 
	if (owner == null || owner.height == 0)
	{
		alert("Your banner must be inside a fixed height table.");
		return;
	}

	// insert another table with the styles needed to do the right
	// relative positioning and clipping.
	e.innerHTML = "<table width=100% border=0 cellpadding=0 cellspacing=0 " +
			"style='position:relative;height:100%'>" +
        "<TR><TD style='position:relative;overflow:hidden'>" +
        "<div id=_banner style='position:relative;'></div>" +
	    "</TABLE>";
	banner = document.all("_banner");
	table = FindTable(banner);
    top = -owner.height;
    window.setTimeout("HandleScroll()",delay);
}

function FindTable(e)
{
	var table = e;
	while (table != null && table.tagName != "TABLE" )
		table = table.parentElement;
	return table;
}

function HandleScroll()
{
    var done = false;
    if (top == -owner.height) 
    {
        if (strings[index] == null)
        {
            index = 0; 
            window.setTimeout("HandleShamelessPlug()",delay);           
            return;
        }
        banner.innerHTML = "<center>" + strings[index] + "</center>";
        index = index + 1;
		table.bgColor = ""; // clear color set in HandleShamelessPlug
        top = owner.height;
    }
    banner.style.top = top;
    top = top - 1;
    var timeout = (top == 0) ? 1000 : delay;
    window.setTimeout("HandleScroll()",timeout);
}

function HandleShamelessPlug()
{
    table.bgColor = "black";
    banner.style.top = 0;
    top = -owner.height;
    window.setTimeout("HandleScroll()",2000);
}

function RandomColor()
{
	var color = "#";
	var i;
	for (i = 0; i < 3; i++)
		color += RandomComponent();
	return color;
}

function RandomComponent()
{
    var i = Math.round(Math.random() * 255);
    return i.toString(16);
}