function contachus_checkform(form){
	if(form.name.value == "")
			{
				alert("Please enter a name")
				form.name.focus();
				return false;
	}

	if(form_contactus.email.value == "")
	{
				alert("Please enter an email")
				form.email.focus();
				return false;
	}else{
		if(!validateEmailv2(form_contactus.email.value)){
			alert("Email is not valid. \n\n Email needs to be in the format: \n\n name@email.com  (or similar)")
			form.email.focus();
			return false;
		}
	}

	return true;
}

function validateEmailv2(email)
{
// a very simple email validation checking. 
// you can add more complex email checking if it helps 
    if(email.length <= 0)
	{
	  return true;
	}
    var splitted = email.match("^(.+)@(.+)$");
    if(splitted == null) return false;
    if(splitted[1] != null )
    {
      var regexp_user=/^\"?[\w-_\.]*\"?$/;
      if(splitted[1].match(regexp_user) == null) return false;
    }
    if(splitted[2] != null)
    {
      var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
      if(splitted[2].match(regexp_domain) == null) 
      {
	    var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
return false;
}