var upH = 12; // Height of up-arrow

var upW = 11; // Width of up-arrow

var downH = 12; // Height of down-arrow

var downW = 11; // Width of down-arrow

var dragH = 41; // Height of scrollbar

var dragW = 11; // Width of scrollbar

var scrollH = 119; // Height of scrollbar

var speed = 5; // Scroll speed

// Browser detection

var dom = document.getElementById ? true:false;

var nn4 = document.layers ? true:false;

var ie4 = document.all ? true:false;

var mouseY; // Mouse Y position onclick

var mouseX; // Mouse X position onclick

var clickUp = false; // If click on up-arrow

var clickDown = false; // If click on down-arrow

var clickDrag = false; // If click on scrollbar

var clickAbove = false; // If click above scrollbar

var clickBelow = false; // If click below scrollbar

var timer = setTimeout("",500); // Repeat variable

var upL; // Up-arrow X

var upT; // Up-arrow Y

var downL; // Down-arrow X

var downT; // Down-arrow Y

var dragL; // Scrollbar X

var dragT; // Scrollbar Y

var rulerL; // Ruler X

var rulerT; // Ruler Y

var contentT; // Content layer Y;

var contentH; // Content height

var contentClipH; // Content clip height

var scrollLength; // Number of pixels scrollbar should move

var startY; // Keeps track of offset between mouse and span

var newsfont;

var key;

function takeShortCut(){

if(key == "f")

location.href = "../index.html";

else if(key == "w") {

clickUp = true;

scrollUp();

clickUp = false;

}

else if(key == "s") {

clickDown = true;

scrollDown();

clickDown = false;

}

else if(key == "m") {

larger();

}

else if(key == "n") {

smaller();

}

}

function findKey(e){

var theEvent;

if(ie4)

theEvent = event.keyCode;

else

theEvent = e.which;

key = String.fromCharCode(theEvent).toLowerCase();

takeShortCut();

}

// Initializing

//if(nn4)

//	document.captureEvents(Event.KEYDOWN);

document.onkeydown = findKey;

// Mousedown

function down(e){

if((document.layers && e.which!=1) || (document.all && event.button!=1)) return true; // Enables the right mousebutton

getMouse(e);

startY = (mouseY - dragT);

// If click on up-arrow

if(mouseX >= upL && (mouseX <= (upL + upW)) && mouseY >= upT && (mouseY <= (upT + upH))){

clickUp = true;

return scrollUp();

}

// Else if click on down-arrow

else if(mouseX >= downL && (mouseX <= (downL + downW)) && mouseY >= downT && (mouseY <= (downT + downH))){

clickDown = true;

return scrollDown();

}

// Else if click on scrollbar

else if(mouseX >= dragL && (mouseX <= (dragL + dragW)) && mouseY >= dragT && (mouseY <= (dragT + dragH))){

clickDrag = true;

return false;

}

else if(mouseX >= dragL && (mouseX <= (dragL + dragW)) && mouseY >= rulerT && (mouseY <= (rulerT + scrollH))){

// If click above drag

if(mouseY < dragT){

clickAbove = true;

clickUp = true;

return scrollUp();

}

// Else click below drag

else{

clickBelow = true;

clickDown = true;

return scrollDown();

}

}

// If no scrolling is to take place

else{

return true;

}

}

// Drag function

function move(e){

if(clickDrag && contentH > contentClipH){

getMouse(e);

dragT = (mouseY - startY);

if(dragT < (rulerT))

dragT = rulerT;

if(dragT > (rulerT + scrollH - dragH))

dragT = (rulerT + scrollH - dragH);

contentT = ((dragT - rulerT)*(1/scrollLength));

contentT = eval('-' + contentT);

moveTo();

// So ie-pc doesn't select gifs

if(ie4)

return false;

}

}

function up(){

clearTimeout(timer);

// Resetting variables

clickUp = false;

clickDown = false;

clickDrag = false;

clickAbove = false;

clickBelow = false;

return true;

}

// Reads content layer top

function getT(){

if(ie4)

contentT = document.all.content.style.pixelTop;

else if(nn4)

contentT = document.contentClip.document.content.top;

else if(dom)

contentT = parseInt(document.getElementById("content").style.top);

}

// Reads mouse X and Y coordinates

function getMouse(e){

if(ie4){

mouseY = event.clientY + document.body.scrollTop;

mouseX = event.clientX + document.body.scrollLeft;

}

else if(nn4 || dom){

mouseY = e.pageY;

mouseX = e.pageX;

}

}

// Moves the layer

function moveTo(){

if(ie4){

document.all.content.style.top = contentT;

document.all.ruler.style.top = dragT;

document.all.drag.style.top = dragT;

}

else if(nn4){

document.contentClip.document.content.top = contentT;

document.ruler.top = dragT;

document.drag.top = dragT;

}

else if(dom){

document.getElementById("content").style.top = contentT + "px";

document.getElementById("drag").style.top = dragT + "px";

document.getElementById("ruler").style.top = dragT + "px";

}

}

// Scrolls up

function scrollUp(){

getT();

if(clickAbove){

if(dragT <= (mouseY-(dragH/2)))

return up();

}

if(clickUp){

if(contentT < 0){

dragT = dragT - (speed*scrollLength);

if(dragT < (rulerT))

dragT = rulerT;

contentT = contentT + speed;

if(contentT > 0)

contentT = 0;

moveTo();

timer = setTimeout("scrollUp()",25);

}

}

return false;

}

// Scrolls down

function scrollDown(){

getT();

if(clickBelow){

if(dragT >= (mouseY-(dragH/2)))

return up();

}

if(clickDown){

if(contentT > -(contentH - contentClipH)){

dragT = dragT + (speed*scrollLength);

if(dragT > (rulerT + scrollH - dragH))

dragT = (rulerT + scrollH - dragH);

contentT = contentT - speed;

if(contentT < -(contentH - contentClipH))

contentT = -(contentH - contentClipH);

moveTo();

timer = setTimeout("scrollDown()",25);

}

}

return false;

}

// reloads page to position the layers again

function reloadPage(){

location.reload();

}

function updateHeight() {

if(dom) {

contentH = parseInt(document.getElementById("content").offsetHeight);

}

else if(ie4) {

contentH = parseInt(document.all.content.scrollHeight);

}

else if(nn4) {

contentH = document.contentClip.document.content.clip.bottom;

}

scrollLength = ((scrollH-dragH)/(contentH-contentClipH));

}

// Preload

function eventLoader(){

if(ie4){

// Up-arrow X and Y variables

upL = document.all.up.style.pixelLeft;

upT = document.all.up.style.pixelTop;

// Down-arrow X and Y variables

downL = document.all.down.style.pixelLeft;

downT = document.all.down.style.pixelTop;

// Scrollbar X and Y variables

dragL = document.all.drag.style.pixelLeft;

dragT = document.all.drag.style.pixelTop;

// Ruler Y variable

rulerT = document.all.ruler.style.pixelTop;

// Height of content layer and clip layer

contentH = parseInt(document.all.content.scrollHeight);

contentClipH = parseInt(document.all.contentClip.style.height);

}

else if(nn4){

// Up-arrow X and Y variables

upL = document.up.left;

upT = document.up.top;

// Down-arrow X and Y variables

downL = document.down.left;

downT = document.down.top;

// Scrollbar X and Y variables

dragL = document.drag.left;

dragT = document.drag.top;

// Ruler Y variable

rulerT = document.ruler.top;

// Height of content layer and clip layer

contentH = document.contentClip.document.content.clip.bottom;

contentClipH = document.contentClip.clip.bottom;

}

else if(dom){

// Up-arrow X and Y variables

upL = parseInt(document.getElementById("up").style.left);

upT = parseInt(document.getElementById("up").style.top);

// Down-arrow X and Y variables

downL = parseInt(document.getElementById("down").style.left);

downT = parseInt(document.getElementById("down").style.top);

// Scrollbar X and Y variables

dragL = parseInt(document.getElementById("drag").style.left);

dragT = parseInt(document.getElementById("drag").style.top);

// Ruler Y variable

rulerT = parseInt(document.getElementById("ruler").style.top);

// Height of content layer and clip layer

contentH = parseInt(document.getElementById("content").offsetHeight);

contentClipH = parseInt(document.getElementById("contentClip").offsetHeight);

document.getElementById("content").style.top = 0 + "px";

}

// Number of pixels scrollbar should move

scrollLength = ((scrollH-dragH)/(contentH-contentClipH));

// Initializes event capturing

if(nn4){

document.captureEvents(Event.MOUSEDOWN | Event.MOUSEMOVE | Event.MOUSEUP | Event.KEYDOWN);

window.onresize = reloadPage;

}

document.onmousedown = down;

document.onmousemove = move;

document.onmouseup = up;

}