function validate_course(x)
{ 

	submitOK	="True";
	var message = "Form incomplete, please enter:\n\n";


	if (x.Name.value.length<2)
 	{ message += "- Your name\n";
          submitOK="False"; }

	if (!isValidEmail (trim(x.Email.value))) 
	{message 		+= "- Enter a correct email address\n";							submitOK="False"; }
        if (x.Course.value.length<2)
 	{ message += "- Your courses\n";
          submitOK="False"; }
	
	if (submitOK=="False") {
 		alert(message)
 		return false;
 	}
 	else {
 		return true;
 	}
}