var MIN_COLS = 2;
	var COL_WIDTH = 220;
	var GAP = 10; 
	
	var offx, offy = 0;
	maxy = new Array();
	
	// on site load (DOM READY)
	//$(function() {
	$(document).ready(function() {
		offy = $('#foliogrid').offset().top;
		offx = $('#foliogrid').offset().left;
		arrange(); 
	});
	
	// on window resize, call again
	$(window).resize( function() { arrange(); } );
	
	arrange();
	
	function arrange() {
	
		// how many columns fits here?
		var columns = Math.max(MIN_COLS, parseInt($('body').innerWidth() / (COL_WIDTH+GAP)));
		$('.post').css('width',COL_WIDTH  + 'px');

		for (x=0; x < columns; x++) {
			maxy[x] = 0;
		}
		
		// lets iterate over all posts
		$('#footer').css('top',0);
		$('.post').each(function(i) {

			var pos, cursor, w , altura= 0;
	
			w = (Math.floor($(this).outerWidth() / COL_WIDTH));
			cursor = 0;

			if (w>1) {
				for (x=0; x < columns-(w-1); x++) {
					cursor = maxy[x] < maxy[cursor] ? x : cursor;
				}
				pos = cursor;
				
				for (var x=0; x<w; x++) {
					altura = Math.max(altura, maxy[pos+x]);
				}
				for (var x=0; x<w; x++) 
					maxy[pos+x] = parseInt($(this).outerHeight()) + GAP + altura;
				
				$(this).css('left', pos*(COL_WIDTH+GAP) + offx).css('top',altura + offy);
			}
			else {
			
				for (x=0; x < columns; x++) {
					cursor = maxy[x] < maxy[cursor] ? x : cursor;
				}

				$(this).css('left', cursor*(COL_WIDTH+GAP) + offx).css('top',maxy[cursor] + offy);
				var heady = maxy[cursor] + offy + parseInt($(this).outerHeight()) +20;
				var wH = $(window).height();
				
				var endY = heady + $('#footer').outerHeight() ;
				var diffY = wH - endY;
				
				if(parseInt($('#footer').css('top')) < heady) {
					$('#footer').css('top',heady+(diffY>0?diffY:0));
				}
				maxy[cursor] += $(this).outerHeight() + GAP;
			}
		});
	}