// Used for the newsletter email verification
    function submitform() {
    	if  (document.sub_form.email_addr.value=='')
  			alert("This email address is not valid");
		else {
  				if ( ((document.sub_form.email_addr.value.indexOf('@',1))==-1)||(document.sub_form.email_addr.value.indexOf('.',1))==-1 )
  					alert("This email address is not valid");

  				else {
                    window.open("", "formPopup", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,height=200,width=500,toolbar=no", true); 
                    document.sub_form.target='formPopup';
  					document.sub_form.submit();
                                      }
  		}
  }