function openMoodalForm(url, caption, size, formName){
	MOOdalBox.open(
		
		url
		, caption
		, size
		, function() {
			
			$(formName).addEvent('submit', function(e) {
		    	
				//Prevents the submit event
				new Event(e).stop();
				
		    	var log = $('log_res').empty().addClass('ajax-loading');
				
		    	this.send({
		        	update: log,
		        	onComplete: function() {
		            	log.removeClass('ajax-loading');
						new Fx.Scroll('mb_contents').toTop();
		        	}
		    	});
			});
			
		}
	
	);
}