iw.vFix = {

	init : function( selector, minTopPosition ) {
	
		if (typeof minTopPosition == 'undefined') minTopPosition = 100;
		$( selector ).each(function( i ) {
			var _this = $(this);
			var offset = _this.offset();
			this.__iw_vFix = {
				offsetTop : offset.top,
				top : parseInt(_this.css('top').replace(/px/, '')),
				windowTop : minTopPosition,
				offsetLeft : offset.left,
				left : parseInt(_this.css('left').replace(/px/, ''))
			};
			$(this).addClass('__vFix');
		});
		
		$(window).bind('scroll', function(e){
			iw.vFix.windowScroll( e );
		});
	
	},
	
	windowScroll : function ( e ) {
	
		$( '.__vFix' ).each(function(i) {
			if ($.browser.msie) {
			} else {
				if (this.style.position == 'fixed') {
					if ( $(this).offset().top < this.__iw_vFix.offsetTop ) {
						this.style.position = 'absolute';
						this.style.top = this.__iw_vFix.top + 'px';
						this.style.left = this.__iw_vFix.left + 'px';
					}
				} else {
					var scrollY = iw.viewport.scrollY();
					if (this.__iw_vFix.offsetTop - scrollY < this.__iw_vFix.windowTop) {
						this.style.position = 'fixed';
						//this.style.top = (scrollY + this.__iw_vFix.windowTop - (this.__iw_vFix.offsetTop - this.__iw_vFix.top)) + 'px';
						this.style.top = this.__iw_vFix.windowTop + 'px';
						this.style.left = this.__iw_vFix.offsetLeft + 'px';
					}
				}
			}
		});
	
	}

};

iw.scroller = {
	
	scroller : null,
	wrapper : null,
	content : null,
	scrollLine : null,
	vars : {
		wrapperWidth : 0,
		contentWidth : 0,
		scrollWidth : 0,
		scrollButtonWidth : 0,
		scrollOffsetLeft : 0,
		maxScrollLeft : 0,
		currentContentScroll : 0
	},
	mouseX : 0,
	mouseMoveFunction : null,
	mouseUpFunction : null,
	autoScrollTimer : null,

	init : function( scroller ) {
	
		this.scroller = $( scroller );
		this.scroller.find('a').bind('focus', function() { this.blur(); });
		if (!this.scroller.length) return;
		
		this.scroller.find('div.scroller-wrapper').mousedown(function( e ) {
			iw.scroller.mouseDown( this, e );
			return false;
		}).click(function( e ) {
			iw.scroller.mouseClick( this, e );
			return false;
		});
		this.scroller.find('.scroll-left div').mouseover(function( e ) {
			iw.scroller.mouseOver( this, e, 'left' );
		}).mouseout( function( e ) { 
			iw.scroller.mouseOut( this, e );
		});
		this.scroller.find('.scroll-right div').mouseover(function( e ) {
			iw.scroller.mouseOver( this, e, 'right' );
		}).mouseout( function( e ) { 
			iw.scroller.mouseOut( this, e );
		});
		this.updateVars();
	},
	
	setScrollerFromChild : function( _this ) {
		this.scroller = $( _this ).parents('#scroller:first');
		this.updateVars();
	},
	
	updateVars : function() {
		this.wrapper = this.scroller.find('div.scroll-wrapper');
		this.content = this.scroller.find('div.scroll-content');
		this.scrollLine = this.scroller.find('div.scroller-wrapper');
		this.scrollButton = this.scroller.find('div.scroller-wrapper div.scroller');
		this.vars.wrapperWidth = this.wrapper.width();
		this.vars.contentWidth = this.content.width();
		this.vars.scrollWidth = this.scrollLine.width();
		this.vars.scrollOffsetLeft = this.scrollLine.offset().left;
		this.vars.scrollButtonWidth = this.scrollButton.width();
		this.vars.maxScrollLeft = this.vars.contentWidth - this.vars.wrapperWidth;
	},
	
	mouseDown : function( _this, e ) {
		this.setScrollerFromChild( _this );
		clearInterval( this.autoScrollTimer );
		this.mouseMoveFunction = function( e ) {
			iw.scroller.mouseMove( e );
		}
		this.mouseUpFunction = function( e ) {
			iw.scroller.mouseUp( e );
		}
		$( document ).bind('mousemove', this.mouseMoveFunction );
		$( document ).bind('mouseup', this.mouseUpFunction );
	},
	
	mouseClick : function( _this, e ) {
		this.setScrollerFromChild( _this );
		var newX = e.clientX - this.vars.scrollOffsetLeft;
		newX -= Math.round( this.vars.scrollButtonWidth / 2 );
		this.scrollToPosition( newX );
	},
	
	scrollToPosition : function( newX ) {
		if (this.vars.wrapperWidth >= this.vars.contentWidth) return false;
		if (newX < 0) newX = 0;
		if (newX > this.vars.scrollWidth - this.vars.scrollButtonWidth) newX = this.vars.scrollWidth - this.vars.scrollButtonWidth;
		clearInterval( this.autoScrollTimer );
		this.autoScrollTimer = setInterval(function() {
			var left = iw.scroller.scrollButton.offset().left - iw.scroller.vars.scrollOffsetLeft;
			var diff = Math.ceil((Math.abs(left - newX) / iw.scroller.vars.scrollWidth) * 100);
			if (diff < 1) diff = 1;
			left = (newX > left ? left + diff : left - diff );
			iw.scroller.setScrollPosition( left );
			var dt = new Date();
			//window.status = 'need: ' + newX + ', left: ' + left + ', ' + diff + ', ' + dt.getTime();
			if (left == newX) {
				clearInterval( iw.scroller.autoScrollTimer );
				//window.status = 'cleared';
			}
		}, 15 );
	},
	
	mouseUp : function( e ) {
		$( document ).unbind('mousemove', this.mouseMoveFunction );
		$( document ).unbind('mouseup', this.mouseUpFunction );
	},
	
	mouseMove : function( e ) {
		var newX = e.clientX - this.vars.scrollOffsetLeft;
		newX -= Math.round( this.vars.scrollButtonWidth / 2 );
		this.setScrollPosition( newX );
	},
	
	mouseOver : function( _this, e, d ) {
		this.setScrollerFromChild( _this );
		clearInterval( this.autoScrollTimer );
		this.autoScrollTimer = setInterval(function() {
			var left = iw.scroller.scrollButton.offset().left - iw.scroller.vars.scrollOffsetLeft;
			left = (d == 'left' ? left - 3 : left + 3);
			iw.scroller.setScrollPosition( left );
		}, 15 );
	},
	
	mouseOut : function( _this, e ) {
		this.setScrollerFromChild( _this );
		clearInterval( this.autoScrollTimer );
	},
	
	setScrollPosition : function( newX ) {
		//if (this.vars.wrapperWidth >= this.vars.contentWidth) return false;
		if (newX < 0 ) newX = 0;
		else if (newX > this.vars.scrollWidth - this.vars.scrollButtonWidth) newX = this.vars.scrollWidth - this.vars.scrollButtonWidth;
		this.scrollButton.css('left', newX);
		//alert( newX / (this.vars.scrollWidth - this.vars.scrollButtonWidth) );
		this.setContentPosition( newX / (this.vars.scrollWidth - this.vars.scrollButtonWidth ) );
	},
	
	setContentPosition : function( percent ) {
		if (this.vars.wrapperWidth >= this.vars.contentWidth) return false;
		if (this.vars.maxScrollLeft <= 0 ) return;
		var newX = this.vars.maxScrollLeft * percent;
		if (newX < 0) newX = 0;
		if (newX > this.vars.maxScrollLeft) newX = this.vars.maxScrollLeft;
		newX = Math.round( newX );
		//alert( newX );
		this.vars.currentContentScroll = newX;
		this.wrapper.attr( 'scrollLeft', newX );
		
	},
	
	undisable : function( parent ) {
		this.setScrollerFromChild( parent );
		this.scroller.find('.disabled').removeClass('disabled');
	},
	
	getLinkByI : function( i ) {
		var link = this.scroller.find('#object-i-'+i).parent().find('a:first');

		var newOffsetLeft = Math.round(this.vars.wrapperWidth / 2 - link.width() / 2);
		var scrollLeft = link.offset().left + this.vars.currentContentScroll - this.vars.scrollOffsetLeft - newOffsetLeft;
		newX = Math.round(( scrollLeft / this.vars.maxScrollLeft ) * (this.vars.scrollWidth - this.vars.scrollButtonWidth ) );
		this.scrollToPosition( newX );
		
		return link.length ? link.get(0) : false;
	}

};

iw.objector = {

	objectsFull : {},
	objectsPart : {},
	
	reverse : false,

	currentObject : null,
	leftObject : null,
	rightObject : null,
	currentObjectID : 0,
	currentObjectI : 0,
	maxObjectI : 0,
	objectURL : '',
	
	init : function() {

		var ar = null;
		if (ar = window.location.hash.match('object:([0-9]+)')) {
			if (ar[1] > 0) {
				if (window.location.pathname.match('/o:[0-9]+')) {
					window.location.href = window.location.protocol + '//'+ window.location.host + window.location.pathname.replace(/\/o:[0-9]+/, '/o:'+ar[1]);
				} else {
					window.location.href = window.location.protocol + '//'+ window.location.host + window.location.pathname.replace(/\/$/, '') + '/o:'+ar[1] + '/';
				}
			}
		}
	
		this.currentObject = $('#current-object');
		this.leftObject = $('#left-object');
		this.rightObject = $('#right-object');
	},
	
	getIDByI : function( i ) {
		var ID = $('#object-i-'+i).parents('.object:first').attr('ID');
		if (!ID) return false;
		var reg = /(\d+)$/;
		var res = reg.exec( ID );
		ID = res[0];
		return ID;
	},
	
	setObjectData : function( ID, html, isFull ) {
		if (typeof isFull == 'undefined') isFull = true;
		var stock = (isFull) ? this.objectsFull : this.objectsPart;
		if (typeof stock[ID] == 'undefined') {
			stock[ID] = html;
		}
	},
	
	loadCurrent : function( i, _parent ) {
		if (typeof (_parent) == 'undefined') {
			_parent = iw.scroller.getLinkByI( i );
		}
		if (!_parent) return false;
		if ($(_parent).hasClass('disabled')) return false;
		//this.setObjectData( this.currentObjectID, this.currentObject.html() );
		var ID = this.getIDByI( i );
		if (!ID) return false;
		if (!this.currentObjectID) { //not inited class objector -> refresh page
			window.location.href =  './o:' + ID + '/';
			return false;
		}
		var self = this.currentObject;
		var setVars = function() {
			iw.scroller.undisable( _parent );
			$(_parent).addClass('disabled').parents('table:first').addClass('disabled');
			iw.objector.currentObjectID = ID;
			iw.objector.currentObjectI = i;
			iw.objector.loadLeft( iw.objector.reverse ? -1 : +1 );
			iw.objector.loadRight( iw.objector.reverse ? +1 : -1 );
		};
		iw.preloader.show('#current-object');
		if (typeof iw.objector.objectsFull[ID] != 'undefined') {
			self.html( iw.objector.objectsFull[ID] );
			iw.preloader.hide('#current-object');
			self.fadeIn();
			setVars();
		} else {
			$.ajax({
				complete: function() {
					iw.preloader.hide('#current-object');
					self.fadeIn();
				},
				url : settings.url + '/object/' + iw.objector.objectURL + '/' + ID + '/',
				type : 'GET',
				dataType : 'text',
				success : function( responseText, statusText ) {
					var html = iw.functions.getAjaxBody( responseText );
					iw.objector.setObjectData( ID, html );
					self.html( html );
					setVars();
				}
			});
		}
	},
	
	loadLeft: function( shift ) {
		if (!shift) shift = this.reverse ? -1 : +1 ;
		var i = this.currentObjectI;
		i += shift;
		if (i > this.maxObjectI) i = 1;
		if (i < 1) i = this.maxObjectI;
		if (i == this.currentObjectI) return false;
		var ID = this.getIDByI( i );
		var self = this.leftObject;
		if (!ID) {
			self.fadeOut();
			return false;
		}
		self.fadeOut('fast', function() {
			if (typeof iw.objector.objectsPart[ID] != 'undefined') {
				self.html( iw.objector.objectsPart[ID] );
				self.fadeIn('fast');
			} else {
				$.ajax({
					complete: function() {
						self.fadeIn('fast');
					},
					url : settings.url + '/object/' + iw.objector.objectURL + '/' + ID + '/?no-comments',
					type : 'GET',
					dataType : 'text',
					success : function( responseText, statusText ) {
						var html = iw.functions.getAjaxBody( responseText );
						iw.objector.setObjectData( ID, html, false );
						self.html( html );
					}
				});
			}
		});
	},
	
	loadRight: function( shift ) {
		if (!shift) shift = this.reverse ? +1 : -1;
		var i = this.currentObjectI;
		i += shift;
		if (i > this.maxObjectI) i = 1;
		if (i < 1) i = this.maxObjectI;
		if (i == this.currentObjectI) return false;
		var ID = this.getIDByI( i );
		var self = this.rightObject;
		if (!ID) {
			self.fadeOut();
			return false;
		}
		self.fadeOut('fast', function() {
			if (typeof iw.objector.objectsPart[ID] != 'undefined') {
				self.html( iw.objector.objectsPart[ID] );
				self.fadeIn('fast');
			} else {
				$.ajax({
					complete: function() {
						self.fadeIn('fast');
					},
					url : settings.url + '/object/' + iw.objector.objectURL + '/' + ID + '/?no-comments',
					type : 'GET',
					dataType : 'text',
					success : function( responseText, statusText ) {
						var html = iw.functions.getAjaxBody( responseText );
						iw.objector.setObjectData( ID, html, false );
						self.html( html );
					}
				});
			}
		});
	},
	
	setLeft : function() {
		this.setChange( this.reverse ? -1 : +1 );
		return;
		/*
		var newI = this.currentObjectI + 1;
		if (newI > this.maxObjectI) newI = 1;
		this.loadCurrent( newI );
		*/
	},
	
	setRight : function() {
		this.setChange( this.reverse ? +1 : -1 );
		return;
		/*
		var newI = this.currentObjectI - 1;
		if (newI < 1) newI = this.maxObjectI;
		this.loadCurrent( newI );
		*/
	},
	
	setChange : function( shift ) {
		if (!shift || typeof shift == 'undefined') shift = 0;
		var newI = this.currentObjectI + shift;
		if (newI > this.maxObjectI) newI = 1;
		if (newI < 1) newI = this.maxObjectI;
		this.loadCurrent( newI );
	}

};