var fs = require('fs');
var request = require('request');

function fetch(i){
    request({'url':'http://s.4cdn.org/image/title/' + i + '.gif','encoding': null},
    function(err,response,body){
        if(!err && response.statusCode == 200){
            fs.writeFile('./GIF/' + i + '.gif',body,function(err){
                if(!err){
                console.log(i/254*100 + '% done')
                }
                else{
                throw new Error('could not write');
                }
            });
        }
        else{
        console.log("could not fetch image " + i + err + ' ' + response.statusCode );
        }
    });
}

var i=0;

for(var x=0;x<=253;x++){
setTimeout(function(){fetch(i);i++;},5000+x*1000);
}