function placeScroll(event) {
	if (!event) var e = window.event;
	
	var xPos = (!event.x) ? event.layerX : event.x;
	
	if (event.x) {
		if (event.layerX < event.x) xPos = event.layerX;
	}

	slider.setValue( ( maxRange * xPos ) / 700 );

}

function scrollToPos(pos) {
	slider.setValue(pos);
	$('works').style.top = (-pos)+"px";

}

function gRRRR() {
	$('logo').style.left = (Math.random() * 870)+"px";
	$('logo').style.top = (Math.random() * 650)+"px";
}
var slider;

function initSliders(maxRange) {
	slider = new Control.Slider($('zoom_slider').down('.handle'), $('zoom_slider'), {
      range: $R(0, maxRange-515),
      sliderValue: 0,
      onSlide: function(value) {
        $('works').setStyle({ top: -value + 'px'});
      },
      onChange: function(value) { 
        $('works').setStyle({ top: -value + 'px'});
      }
    });	
    new scrollBar('works', 'workContainer', slider);
}

var scrollBar 	= Class.create();

scrollBar.prototype = {
	initialize: function(element, container, slider) {
		this.element 			= $(element);
		this.container			= $(container);
		this.slider				= slider;
		this.eventScroll		= this.scroll.bindAsEventListener(this);
		
		
		$(this.element).style.cursor = 'move';
		
		new Draggable(this.element, {
			constraint: 'vertical',
			onDrag: function () {
				var positionTop = $(element).positionedOffset().top;
				slider.setValue(-(positionTop));
			},
			onEnd: function () {
				var positionTop = $(element).positionedOffset().top;
				var dimensions 	= ($(element).getHeight()  - $(container).getHeight());
				if (positionTop > 0) {
					new Effect.Move(element, {x:0, y:0, mode:'absolute', duration:0.3});
				} else if (positionTop < -dimensions) {
					new Effect.Move(element, {x:0, y:-dimensions, mode:'absolute', duration:0.3});				
				}	
			}
		});	
		
		if (BrowserDetect.browser.toLowerCase().indexOf("firefox") != -1 ) {
			Event.observe(container, "DOMMouseScroll", this.eventScroll);
		} else {
			Event.observe(container, "mousewheel", this.eventScroll);
		}
	},
	
	scrollUp: function() {
	
		var positionTop = $(this.element).positionedOffset().top;
		var dimensions 	= ($(this.element).getHeight()  - $(this.container).getHeight());
			
		if (positionTop > - (dimensions))
			$(this.element).style.top = (positionTop-60)+"px";
			this.slider.setValue(-(positionTop-60));
	},
	
	scrollDown: function() {
		var positionTop = $(this.element).positionedOffset().top;
		if (positionTop < 0)
			$(this.element).style.top = (positionTop+60)+"px";
			this.slider.setValue(-(positionTop+60));
	},
	
	scroll: function(event) {
		if (!event)
			event = window.event;
			
		if (event.wheelDelta) {
			delta = event.wheelDelta/120;
			if (window.opera)
				delta = -delta;
		} 
		else if (event.detail) {
			delta = -event.detail/3;
		}
		
		if (delta > 0) {
			this.scrollDown();
		} else {
			this.scrollUp();
		}
 
		if (event.preventDefault)
			event.preventDefault();
			
		event.returnValue = false;
	}	
};

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]
 
};
BrowserDetect.init();