$(document).ready(function(){
	$("a,form").each(function(a){
		if((this.href && this.rel=='ext') || $(this).hasClass('ext'))
			this.target = '_blank';
	});
});

function reCaptcha(){
	var c = $('#immagine_captcha');
	creg = new RegExp("(nc=.*)","i");
	c.attr('src', c.attr('src').replace(creg,"nc="+(new Date()).getTime()) );
}