add nodejs_fileupload.js

+var http=require('http');
+var formidable=require('formidable');
+var fs=require('fs');
+
+http.createServer(function(req,res){
+  if (req.url=='/fileupload'){
+    var form=new formidable.IncomingForm();
+    form.parse(req,function(err,fields,files){
+      var oldpath=fiels.filetoupload.path;
+      var new path='C:/Users/njs04/'+file.filetoupload.name;
+      fs.rename(oldpath,newpath,function(err){
+        if (err) throw err;
+        res.write('File uploaded');
+        res.end();
+      });
+    });
+  } else {
+    res.writeHead(200,{'Content-Type': 'text/html'});
+    res.write('<form action="fileupload" method="post" enctype="multipart/form-data">');
+    res.write('<input type="file" name="firetoupload"><br>');
+    res.write('<input type="submit">');
+    res.write('</form>');
+    return res.end();
+  }
+}).listen(8080);