/*
		 * stickyfloat - jQuery plugin for verticaly floating anything in a constrained area
		 * 
		 * Example: jQuery('#menu').stickyfloat({duration: 400});
		 * parameters:
		 * 		duration 	- the duration of the animation
		 *		startOffset - the amount of scroll offset after it the animations kicks in
		 *		offsetY		- the offset from the top when the object is animated
		 *		lockBottom	- 'true' by default, set to false if you don't want your floating box to stop at parent's bottom
		 * $Version: 05.16.2009 r1
		 * Copyright (c) 2009 Yair Even-Or
		 * vsync.design@gmail.com
		 */

		$.fn.stickyfloat = function(options, lockBottom) {
			var $obj 				= this;
			var parentPaddingTop 	= parseInt($obj.parent().css('padding-top'));
			var startOffset 		= $obj.parent().offset().top;
			var opts 				= $.extend({ startOffset: startOffset, offsetY: parentPaddingTop, duration: 200, lockBottom:true }, options);
			var parenHeight         = $('#ConteinerRight').height();;
			
			var parentPaddingTop = 0; 
			
			$obj.css({ position: 'absolute' });
			
			if(opts.lockBottom){
				
				var bottomPos = parenHeight - $obj.height() + parentPaddingTop; //get the maximum scrollTop value
				if( bottomPos < 0 )
					bottomPos = 0;
			}
			
			$(window).scroll(function () { 
				$obj.stop(); // stop all calculations on scroll event

				var pastStartOffset			= $(document).scrollTop() > opts.startOffset;	// check if the window was scrolled down more than the start offset declared.
				var objFartherThanTopPos	= $obj.offset().top > startOffset;	// check if the object is at it's top position (starting point)
				var objBiggerThanWindow 	= $obj.outerHeight() < $(window).height();	// if the window size is smaller than the Obj size, then do not animate.
				
				// if window scrolled down more than startOffset OR obj position is greater than
				// the top position possible (+ offsetY) AND window size must be bigger than Obj size
				if( (pastStartOffset || objFartherThanTopPos) && objBiggerThanWindow ){ 
					var newpos = ($(document).scrollTop() -startOffset + opts.offsetY );
					if ( newpos > bottomPos )
						newpos = bottomPos;
					if ( $(document).scrollTop() < opts.startOffset ) // if window scrolled < starting offset, then reset Obj position (opts.offsetY);
						newpos = parentPaddingTop;
		
					$obj.animate({ top: newpos }, opts.duration );
				}
			});
		};
		
$(document).ready(function() {
	
		$('#float_menu').stickyfloat({ duration: 400 });
});