Merb/jQuery: add delete method to destroy links.

jquery.deletable.js

// Make merb resource route url link_to's with class deletable fake delete HTTP method.

jQuery.fn.deletable = function() {
    return this.each(function() {
        var delete_link = $(this);
        var hidden_form = document.createElement('form');
        hidden_form.style.display = 'none';
        delete_link.append(hidden_form);
        hidden_form.method = 'POST';
        hidden_form.action = delete_link.attr('href');
        var method_input = document.createElement('input');
        method_input.setAttribute('type', 'hidden');
        method_input.setAttribute('name', '_method');
        method_input.setAttribute('value', 'delete');
        hidden_form.appendChild(method_input);
        this.form = hidden_form;
        delete_link.click(function() {
			if (confirm("Are you sure?")){
	            this.form.submit();
			}
            return false;
        });
    });
};

$(document).ready(function() {
    $('a.deletable').deletable();
})