jQuery(document).ready(function(){
		var pxShow = 750;//height on which the button will show
		var fadeInTime = 500;//how slow/fast you want the button to show
		var fadeOutTime = 500;//how slow/fast you want the button to hide
		var scrollSpeed = 500;//how slow/fast you want the button to scroll to top. can be a value, 'slow', 'normal' or 'fast'
		jQuery(window).scroll(function(){
			if(jQuery(window).scrollTop() >= pxShow){
				jQuery("#backtotop").fadeIn(fadeInTime);
			}else{
				jQuery("#backtotop").fadeOut(fadeOutTime);
			}
		});
		 
		jQuery('#backtotop a').click(function(){
			jQuery('html, body').animate({scrollTop:0}, scrollSpeed); 
			return false; 
		}); 
	});