var wait_seconds = 15
 
$(document).observe('dom:loaded', function() {
	// disable the form
	disable_comment_form()
	// update the form
	new PeriodicalExecuter(function(pe) {
		// if we find our form
		if(el = $('new_comment')) {
			// decrement the seconds
			wait_seconds = wait_seconds - 1
 
			var button = el.down('button')
 
			// if there is time left
			if(wait_seconds > 0) {
				// simply update the text
				button.innerHTML = 'Please wait ' + wait_seconds + ' seconds...'
			} else {
				// stop the future events
				pe.stop();
				// update the text
				button.innerHTML = 'Submit Comment »'
				// enable it
				button.disabled = ''
			}
		// if we can't find the form
		} else {
			// stop the future events
			pe.stop();
		}
	}, 1)
})
 
var disable_comment_form = function() {
	if(el = $('new_comment')) {
		var button = el.down('button')
		button.innerHTML = 'Please wait ' + wait_seconds + ' seconds...'
		button.disabled = 'disabled'
	}
}