$(document).ready(function () {
$('.b2t').click(function(){
	$('html, body').animate({scrollTop: $('#header').offset().top}, 2000);
	return false;//返回false可以避免在原链接后加上#
});
$('.g2b').click(function(){
	$('html, body').animate({scrollTop: $('#footer').offset().top}, 2000);
	return false;//返回false可以避免在原链接后加上#
});
});//上下滚动按钮


$(this).scroll(function() { // 页面发生scroll事件时触发
var bodyTop = 0;
if (typeof window.pageYOffset != 'undefined') {
bodyTop = window.pageYOffset;
}
else if (typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat')
{
bodyTop = document.documentElement.scrollTop;
}
else if (typeof document.body != 'undefined') {
bodyTop = document.body.scrollTop;
}
$("#ad-left").css("top", 100 + bodyTop) // 设置层的CSS样式中的top属性, 注意要是小写，要符合“标准”
$("#ad-right").css("top", 100 + bodyTop)
});//左右浮动广告

/*
document.writeln("<div id=\"ad-left\">");
document.writeln("<a href=\"http:\/\/item.taobao.com\/item.htm?id=8076555331\" target=\"_blank\"><img src=\"http:\/\/www.sc-seo.com\/images\/ad\/ad-left.jpg\" width=\"100\" height=\"300\" \/><\/a>");
document.writeln("<\/div>");
document.writeln("<div id=\"ad-right\">");
document.writeln("<a href=\"http:\/\/shop36296427.taobao.com\/\" target=\"_blank\"><img src=\"http:\/\/www.sc-seo.com\/images\/ad\/ad-right.jpg\" width=\"100\" height=\"300\" \/><\/a>");
document.writeln("<\/div>");
*/