function CheckRequiredFields() 
			{
				var check = true;
				var email = Application.emailinput.value;
				if(WithoutContent(email))
				{  
				alert('Please type your E-mail');
					check = false;
				}
				else if(checkEmail(email) == false)
				{
				alert('You have typed an invalid E-mail');
				check = false;
				} 
				return check;
			}

			function WithoutContent(cont) {
				if(cont.length > 0) { return false; }
				return true;
			}

			function checkEmail (email)
			{
				var reg_exp = /^[a-z][\w\.]*@[\w\.]+\.[a-z]{2,3}/i
				return reg_exp.test(email) 
			}