function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
  {alert(alerttxt);return false;}
else {return true}
}
}


function validate_form(thisform)
{
	
with (thisform)
{
if (validate_required(Name,"Please enter your name")==false)
  {Name.focus();return false;} 
 
if (validate_required(Phone,"Please enter your telephone number")==false)
  {Phone.focus();return false;}
 
if (validate_required(Email,"Please enter your email address")==false)
  {Email.focus();return false;}  
  
if (validate_required(Address,"Please enter your address")==false)
  {Address.focus();return false;} 
  
if (validate_required(Postcode,"Please enter your postcode")==false)
  {Postcode.focus();return false;}

if (validate_required(Message,"Please enter a message")==false)
  {Message.focus();return false;}   


  


     
}
}