<!-- 

var upH = 8; // Height of up-arrow
var upW = 10; // Width of up-arrow
var downH = 7; // Height of down-arrow
var downW = 10; // Width of down-arrow
var dragH = 41; // Height of scrollbar
var dragW = 14; // Width of scrollbar
var speed = 25; // Scroll speed
var scrollH = 234; // Height of scrollbar

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("",250); // 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

picup = new Image(); picup.src = "up.gif";
picdown = new Image(); picdown.src = "down.gif";
picdrag = new Image(); picdrag.src = "drag.gif";

// 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;
		picDown('up');
		return scrollUp();
	}       
	// Else if click on down-arrow
	else if(mouseX >= downL && (mouseX <= (downL + downW)) && mouseY >= downT && (mouseY <= (downT + downH))){
		clickDown = true;
		picDown('down');
		return scrollDown();
	}
	// Else if click on scrollbar
	else if(mouseX >= dragL && (mouseX <= (dragL + dragW)) && mouseY >= dragT && (mouseY <= (dragT + dragH))){
		clickDrag = true;
		picDown('drag');
		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;
	}
}

function picDown(which){
	if(document.all)
		eval('document.all.pic' + which + '.src = pic' + which + '.src');
	else
		eval('document.' + which + '.document.pic' + which + '.src = pic' + which + '.src');
}

function picUp(which){
	if(document.all)
		eval('document.all.pic' + which + '.src = "' + which + '.gif"');
	else
		eval('document.' + which + '.document.pic' + which + '.src = "' + which + '.gif"');
}

// 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;
	picUp('up');
	picUp('down');
	picUp('drag');
	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;
		mouseX = event.clientX;
	}
	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();
}

// 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 X and Y variables
		rulerL = document.all.ruler.style.pixelLeft;             
		rulerT = document.all.ruler.style.pixelTop;             
		// Height of content layer and clip layer
		contentH = document.all.content.offsetHeight;
		contentClipH = document.all.contentClip.offsetHeight;
	}
	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 X and Y variables
		rulerL = document.ruler.left;
		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 X and Y variables
		rulerL = parseInt(document.getElementById("ruler").style.left);
		rulerT = parseInt(document.getElementById("ruler").style.top);
		// Height of content layer and clip layer
		contentH = document.getElementById("content").offsetHeight;
		contentClipH = 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)
		window.onresize = reloadPage;
    }
    document.onmousedown = down;
    document.onmousemove = move;
    document.onmouseup = up;
}

//-->