gistfile1.txt

function GetImage(){
   if(jQuery('div.sm-lightbox-focused').length > 0)
   {
      jQuery('div.sm-lightbox-focused').addClass('.sm-lightbox-clean');
      jQuery('div button.sm-lightbox-close').click();


   }
    var last = "";
	jQuery('li.sm-tile-photo a div').each(function(i,e){
	  var element = e;
      
		var promise  = new Promise(function(resolve, reject){
		  jQuery(element).click();
		  console.log(this);
		  resolve(1);
		});
		         
		promise.then(function(value) {
		  
           var url = jQuery('img.sm-lightbox-image').css('background-image').split('url(');
		   var loc = url[1].slice(0, -1);
		   console.log(loc);
		   if(last !== loc)
             window.open(loc, '_blank');
           last = loc;
		});
	});
};


var jq = document.createElement('script');
jq.src = "https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js";

document.querySelector('html').insertBefore(jq, document.body);