function checkadd1(){
        mu=this.document.contactform;
        var test_str = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/

        // These are the required fields in the contact form

        if (mu.name.value=="")
                {alert("You must enter your full name") }
        else
                       if (mu.email.value=="")
                                   {alert("We will need your e-mail address to get back to you") }
                       else
                              if (!mu.email.value.match(test_str))
                                       {alert("Invalid email address");
                                		         }
				else
                    					 if (mu.comments.value=="")
                                        			{alert("You haven't asked for any information") }
                               						
                                		   	      else {document.contactform.submit();}
}