function validate_required(field,alerttxt)
{
	with (field)
	{
		if (value==null||value=="")
	  {
	  	document.getElementById("message").innerHTML = alerttxt;
	  	return false;
	  }
		else 
		{
			return true;
		}
	}
}

function validate_form(thisform)
{
	with (thisform)
	{
		if (validate_required(name,"<span id=\"err_mssg\">Please tell me your name</span>")==false)
	  {
	  	name.focus();
	  	return false;
	  }
		if (validate_required(email,"<span id=\"err_mssg\">I'll need your Email</span>")==false)
	  {
	  	email.focus();
	  	return false;
	  }
		if (validate_required(message,"<span id=\"err_mssg\">Write a short message</span>")==false)
	  {
	  	message.focus();
	  	return false;
	  }
	}
}