function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate_form(thisform)
{
with (thisform)
  {
	  if(name.value!="Your Name")
	  {
			if(email.value!="Your E-mail")
			{
				  if (validate_email(email,"Not a valid e-mail address!")==false)
   				 {email.focus();return false;}	
				 else
				 {
					if(msg.value!="Type your message here")
					{
						var redirect_to = "mail/mail.php";
						thisform.action=redirect_to;
						thisform.submit();
					}
					else
					{
						alert("Enter Your Message");
						msg.focus();return false;	
					}
			     }
			}
			else
			{
				alert("Enter E-mail");
				email.focus();return false;
			}
			
	  }
	  else{
	  	alert("Enter Your Name");
		name.focus();return false;
	  }
  
  }
}