form auto save using jquery

whenever any changes occurs in the form this will make ajax request to save the form data

jQuery(document).ready(
function()
{
jQuery('#form').change(function(e)
{
var str = jQuery("#form").serialize(); //post variables present in the form input,select and all inputs
jQuery.ajax({
type: "POST", //method
url: "/save.php", //url to make request
data: str
}); //end of ajax
});// end of form change
});