function checkEmail(s) {
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
	return filter.test(s);
};

function apriFinestra(pagina,wid,hei) {
	var w;
	w = window.open(pagina, "", "titlebar=1, toolbar=1, location=1, directories=1, status=1, menubar=1, scrollbars=1, resizable=1, copyhistory=1, width="+wid+", height="+hei+", top=10, left=10, fullscreen=0");
	return;
};

function skillChoose(n) {
				 document.skillForm.skill.value = n;
				 document.skillForm.action = "bier_index.php";
				 document.skillForm.submit();				 															 
}