var scroller  = null;
var scrollbar = null;
var scrollTween = null;
var set_one = [0,1,3,6,10,15,21,28,36,45,55,64,72,79,85,90,94,97,99,100];
var set_two = [0,25,50,70,85,95,97,99,100];
var set_three = [0,10,20,30,40,50,60,70,80,90,100];
var set_four = [0,25,50,70,85,95,100,105,101,97,100,99,100];


function swapSteps (w) {
    scrollTween.steps = w;
}

function scrollbarEvent (o, type) {
    if (type == "mousedown") {
	    if (o.className == "Scrollbar-Track") o.style.backgroundColor = "#FFFFFF";
	    else o.style.backgroundColor = "#FFFFFF";
    } else {
	    if (o.className == "Scrollbar-Track") o.style.backgroundColor = "#FFFFFF";
	    else o.style.backgroundColor = "#FFFFFF";
    }
}

function swapIt(o) {
    o.blur();
    if (o.className == "current") return false;
  
    var list = document.getElementById("Navigation").getElementsByTagName("a");
    for (var i = 0; i < list.length; i++) {
	    if (list[i].className == "current") {
		    list[i].className = "";
		    document.getElementById(list[i].title).y = -scroller._y;
	    }
	    if (list[i].title == o.title) o.className = "current";
    }
  
    list = document.getElementById("Container").childNodes;
    for (var i = 0; i < list.length; i++) {
	    if (list[i].tagName == "DIV") list[i].style.display = "none";
    }
  
    var top = document.getElementById(o.title);
    top.style.display = "block";
    scrollbar.swapContent(top);
    if (top.y) scrollbar.scrollTo(0, top.y);
  
    return false;
}