/*
													 * 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);
														
														$obj.css({ position: 'absolute' });
														
														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 );
															}
														});
													};
										
													$('#floater').stickyfloat({ duration: 100, offsetY: 15 });