I have several areas where I use AJAX to submit text fields.
var name = $(\"input#name\").val(); $.ajax({ type: \"POST\", url: \"bin/proces
This is typically done using an iFrame to send the file to the server.
The jQuery Form Plugin is a great resource for that.
Here is another upload script which uses xhr when possible (FF, Safari) and falls back gracefully to iFrame if necessary (IE)