$(document).ready(function () {  
	if (document.getElementById("div-gpt-ad-1397738683526-0")) 
	{
		var pfloat = parseFloat($('#div-gpt-ad-1397738683526-0').css('marginTop').replace(/auto/, 0));
		var top = $('#div-gpt-ad-1397738683526-0').offset().top;
		// var footertop = $('#div-gpt-ad-1397738683526-3').offset().top - parseFloat($('#div-gpt-ad-1397738683526-3').css('marginTop').replace(/auto/, 0)) - 895;
		// var footertop = $('#div-gpt-ad-1397738683526-3').offset().top - 695;
		var footertop = document.getElementById('myscrolldiv').offsetHeight - 300;
		

		$(window).scroll(function (event) {
		  // what the y position of the scroll is
		  var y = $(this).scrollTop();
			var x = $(this).scrollLeft();
			var mytop = Math.max(0, Math.min(y, footertop) - top);
			var newtop = mytop + 90;
			
			// document.getElementById('readout').innerHTML = "<BR/>ALT: " + alttop + "<BR/>FOOTER: " + footertop;
			// document.getElementById('readout').innerHTML = "X: " + x + "<BR />Y: " + y + "<BR/>TOP: " + top + "<BR/>MYTOP: " + mytop + "<BR/>LEFT: " + left + "<BR/>FOOTERTOP: " + footertop;
			// document.getElementById('comment').style.left = myleft;	
			// console.log('x:' + x + ' y:' + y + ' top:' + top + ' footertop:' + footertop + ' mytop:' + mytop + ' newtop:' + newtop);
		  	
		   // Stop follow scroll
			if (y >= footertop || Math.abs(x) > 10){
				$('#div-gpt-ad-1397738683526-0').removeClass('fixed');
				document.getElementById('div-gpt-ad-1397738683526-0').style.top = newtop + "px";
			}
			// Follow scroll
			else if (y >= 350) {
				$('#div-gpt-ad-1397738683526-0').addClass('fixed');
				document.getElementById('div-gpt-ad-1397738683526-0').style.top = 90 + "px";
		    } 
			// Don't follow scroll
			else {
				$('#div-gpt-ad-1397738683526-0').removeClass('fixed');
				document.getElementById('div-gpt-ad-1397738683526-0').style.top = 1 + "px";
		    }
		});
	}
});