$(function(){

waterfall();

});

var waterfall = function(){

var $boxs = $("#main>div");

var w = $boxs.eq(0).outerWidth();

//獲取列數

var cols = Math.floor($(window).width()/w);

var total = w*cols;

$("#main").width(total);

var hArr = [];

$boxs.each(function(index,value){

var h = $boxs.eq(index).outerHeight();

if(index<cols){

hArr[index] = h;

}else{

var minH = Math.min.apply(null,hArr);

var minHindex = $.inArray(minH,hArr);

$(value).css({

'position':'absolute',

'top':minH+'px',

'left':minHindex*w+'px'

});

hArr[minHindex] += $boxs.eq(index).outerHeight();

}

})

}