$(document).ready(function() {



	/*setto i background degli elementi gallery*/
	
	$('.preview').css('background-image',function(){
		var $bgvar = $(this).find('img').attr('src');
		$bgvar = 'url('+$bgvar+')';
		return $bgvar;
	});
		
	$('.preview img').hide();
	
	/*footer position*/
	var $amount = $(document).height() - 300;
	$('#foot').css('marginTop',$amount+'px');

	
});