/*
 * 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
 * $Version: 05.16.2009 r1
 * Copyright (c) 2009 Yair Even-Or
 * vsync.design@gmail.com
 */
(function($) {
	 $.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);
	 	$obj.css({ position: 'absolute'  });
		
		//$obj.css({ 'margin-top': 95  });
		
 
	 	if(opts.lockBottom){
			 var bottomPos = $obj.parent().height() - $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 );
				 
				 
			 }
		 });
	 };
})(jQuery);

jQuery(document).ready(function($){
	 if( $('.menu-sidebar').length ) {
		 $('.menu-sidebar').stickyfloat({ duration: 0 });
		// jQuery('.menu-sidebar').stickyfloat('update',{duration : 0, stickToBottom:true});
	 }
});