Stuff

				function validemail() 
				{
					var regex = new RegExp(([A-Za-z0-9-_]{3,})@([A-Za-z0-9-.]{3,}).([A-Za-z]{2,6}));
					var mail = document.form1.mail.value; 
					if (mail.match(regex) 
					{
						alert("Debug: Corect!");
					}
				}