瀑布流的实现

<script language="javascript">
      var $container = $('.tjlb ul');
$container.imagesLoaded( function(){
$container.masonry({
columnWidth:350,
itemSelector: 'li',
animate: true,
animationOptions: {},
gutterWidth:75,
});
});
var nextUrl=$("#nextpage a").attr('href');
var setIt=true;
$(window).bind('scroll',function(){
if($(window).height()+$(window).scrollTop()>$(document).height()-200 && setIt)
{
if(nextUrl!=undefined)
{
$('#page_loading').show();
$.ajax(
{
url:nextUrl,
type:'GET',
beforeSend:function(){setIt=false;},
success:function(data)
{
var result=$(data).find(".img");
nextUrl=$(data).find("#nextpage a").attr('href');
$("#nextpage a").attr('href',nextUrl);
$(".tjlb ul").append(result);
$newelement=result.css({ opacity: 0 });
$newelement.imagesLoaded(function(){
$container.masonry( 'appended', $newelement, true );
$newelement.animate({ opacity: 1 });
$("#page_loading").hide("slow");   
});
//$container.append(result).masonry("reload");
},
complete:function(){setTimeout(setIt = true, 600);}
}
);
}else
{
$('#page_loading span').text('已加载作家的全部作品');
$('#page_loading').show('fast');
}
}
});
</script>