anchor.diff:  
   				form(method="POST" action="/submit_form")
   					input(type="hidden" id="photo_url" name="photo_url")
  -					input(type="text" name="description" placeholder="Enter a description" size="50")
  +					input(type="text" id="title" name="title" placeholder="Enter a title" size="40")
   					br
   					br
   					input(type="submit" value="Upload your photo")
  
positive.code: 		    document.getElementById("file_input").onchange = function(){
  		        var files = document.getElementById("file_input").files;
  		        var file = files[0];
  		        console.log(file.type);
  
  		        if(file == null){
  
  		            alert("No file selected.");
  		        }
  		        else if(file.size > 3000000) {
  
negative.code: 		    };
  		    xhr.onerror = function() {
  		        alert("Could not upload file.");
  		    };	
  		    xhr.send(file);
  		}