function checkMail(mail){
		var er = new RegExp(/^[A-Za-z0-9_\-\.]+@[A-Za-z0-9_\-\.]{2,}\.[A-Za-z0-9]{2,}(\.[A-Za-z0-9])?/);
		if(typeof(mail) == "string"){
			if(er.test(mail)){ 
				return true
			}
		}else if(typeof(mail) == "object"){
			if(er.test(mail.value)){ 
						return true; 
					}
		}else{
			return false;
			}
	}
	function EmailValid(){
		email = document.getElementById("email");
		alert(email);
		/*if(!checkMail(email.value)){
			document.getElementById("msg").innerHTML = "Email incorreto";
		}else{
			if(email.value.indexOf("@gmail.com.br") > 3){
				email.value = email.value.substr(0, email.value.indexOf("@gmail.com.br") ) + "@gmail.com";
			}	
		}*/
	}