/*
* scroller v1.0. - jQuery menu scroller
* Copyright (c) 2011 Chris Yeung
*
* Dual licensed under the MIT and GPL licenses:
* 	http://www.opensource.org/licenses/mit-license.php
* 	http://www.gnu.org/licenses/gpl.html
*/

(function($){

	var display = null;
	var pausing = false;

	$.fn.displayslider = $.fn.DisplaySlider = function(options){
		var defaults = {  // default values
			scrollY: 0,  
			scrollHeight: 0,
			mouseOverPause: true
		};  

		var options = $.extend(defaults, options);  

		var methods = {
			init : function(){
				display.css({
					'position':'relative',
					'top':'0px'
				});
				options.scrollY = display.position().top;
				options.scrollHeight = display.height();	
				display.append(display.html());

				if (options.mouseOverPause)
				{
					display.mouseenter(function(){						
						methods.pause();
					});
					display.mouseleave(function(){
						methods.resume();
					});
				}
				this.startScroll();				
			},
			startScroll : function(){
				var y = display.position().top;
				if (y <= -(options.scrollHeight)){
					display.css("top","0px");
				}
				display.startAnimation({
					top: -(options.scrollHeight)
				}, 100000, "linear", function(){
					methods.startScroll();
				});
			},
			pause: function(){
				if (!pausing)
				{
					pausing = true;
					display.pauseAnimation();
				}				
			},
			resume: function(){
				if (pausing)
				{
					pausing = false;
					display.resumeAnimation();
				}				
			}
		}

		return this.each(
			function() { 
				display = $(this);
				methods.init();
			}
		);  
	};

})(jQuery);


/*
jQuery plugin : pause resume animation
Created by Joe Weitzel
BOX Creative LLC
http://plugins.jquery.com/project/Pause-Resume-animation
*/
jQuery.fn.startAnimation = function(  params, duration, easing, callback ) {
	jQuery(this).animate( params, duration, easing, callback );
	var data = { target:this.get(0), params: params, duration: duration, easing: easing, callback: callback,
				startTime: new Date().getTime(), timePlayed: 0, timeRemaining: 0 };
	if( !jQuery.pauseableAnimations ) {
		jQuery.extend({ pauseableAnimations: new Array( data ) });
	} else {
		for( var i in jQuery.pauseableAnimations ) {
			if( jQuery.pauseableAnimations[i].target == this.get(0) ) {
				jQuery.pauseableAnimations[i] = data;
			} else {
				jQuery.pauseableAnimations.push( data );
			};
		};
	};
};
jQuery.fn.pauseAnimation = function() {
	if( jQuery.pauseableAnimations ) {
		for(var i in jQuery.pauseableAnimations ) {
			if( jQuery.pauseableAnimations[i].target == this.get(0) ) {
				jQuery(this).stop();
				var now = new Date().getTime();
				var data = jQuery.pauseableAnimations[i];
				data.timePlayed += ( now - data.startTime );
				data.timeRemaining = data.duration - data.timePlayed;
				if( data.timePlayed > data.duration ) {
					var newArray = new Array();
					for( var p in jQuery.pauseableAnimations ) {
						if( jQuery.pauseableAnimations[p] != data ) newArray.push( jQuery.pauseableAnimations[p] );
					};
					jQuery.pauseableAnimations = newArray.length > 0 ? newArray : null;
					delete newArray;
					return this;
				};
				break;
			};
		};
	};
	return this;
};
jQuery.fn.resumeAnimation = function() {
	if( jQuery.pauseableAnimations ) {
		for(var i in jQuery.pauseableAnimations ) {
			var data = jQuery.pauseableAnimations[i];
			if( data.target == this.get(0) ) {
				this.animate( data.params, data.timeRemaining, data.easing, data.callback );
				data.startTime = new Date().getTime();
				return this;
			};
		};
	};
};