$(document).ready(function(){
	$("body").append('<div id="on1x_gotop" style="position:fixed;bottom:0px;right:0px;background:#888;padding:5px 15px;display:none;border:0;"><a href="javascript:;" onclick="scroll(0,0);" style="color:#fff;">наверх &uarr;</a></div>');
	$(window).scroll(function () {
		offset = $(document).scrollTop()+"px";
		if("0px"==offset){
			$("#on1x_gotop").css("display","none");
		}
		else{
			$("#on1x_gotop").css("display","block");
		}
	});
});