function checkForm()
{
	if (document.form1.name.value==""||document.form1.phone.value==""||document.form1.email.value=="")	{
		alert("Please fill all required fields.");
		return false;
	}
	else if (!checkEmail(document.form1.email.value)) {
		alert('Email is incorrect');
		return false;
	}
	else
	    return true;
}

function checkEmail(email)
{ 
  var reg = /[0-9a-z_]+@[0-9a-z_^.]+\.[a-z]{2,3}/;
  return reg.test(email);
}