MM_preloadImages('gifs/menu/home1.GIF','gifs/menu/intro1.GIF','gifs/menu/current1.GIF','gifs/menu/exhib1.GIF','gifs/menu/contact1.GIF');


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v3.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_displayStatusMsg(msgStr) { //v1.0
  status=msgStr;
  document.MM_returnValue = true;
}

function validUnsub(obj) {
   	var errMsg = '';

	if ((obj.elements['removeme'].value == '') || (obj.elements['removeme'].value == ' ')) {
		errMsg = errMsg + 'Please enter your E-mail address.\n';
   	}
	if (errMsg != '') {
		errMsg = '[Form Validation]\n\nThis form could not be submitted because :\n\n' + errMsg;
		alert(errMsg); 
    		return false;
	} 
	else {
		return true;
	} 
}

function validCategory(obj) {
   	var errMsg = '';

	if ((obj.elements['firstname'].value == '') || (obj.elements['firstname'].value == ' ')) {	
		errMsg = errMsg + 'The \'First Name\' field can not be left blank.\n';
   	}
	if ((obj.elements['surname'].value == '') || (obj.elements['surname'].value == ' ')) {	
		errMsg = errMsg + 'The \'Surname\' field can not be left blank.\n';
   	}
//	if ((obj.elements['address'].value == '') || (obj.elements['address'].value == ' ')) {	
//		errMsg = errMsg + 'The \'Address\' field can not be left blank.\n';
//   	}
//	if ((obj.elements['telephone'].value == '') || (obj.elements['telephone'].value == ' ')) {	
//		errMsg = errMsg + 'The \'Telephone\' field can not be left blank.\n';
//   	}
	if ((obj.elements['email'].value == '') || (obj.elements['email'].value == ' ')) {
		errMsg = errMsg + 'The \'Email\' field can not be left blank.\n';
   	}
	if (errMsg != '') {
		errMsg = '[Form Validation]\n\nThis form could not be submitted because :\n\n' + errMsg;
		alert(errMsg); 
    		return false;
	} 
	else {
		return true;
	} 
}

function emailCheck (emailStr) {

  var checkTLD=1;
  var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
  var emailPat=/^(.+)@(.+)$/; 
  var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
  var validChars="\[^\\s" + specialChars + "\]";
  var quotedUser="(\"[^\"]*\")";
  var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
  var atom=validChars + '+';
  var word="(" + atom + "|" + quotedUser + ")";
  var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
  var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
  var matchArray=emailStr.match(emailPat);

  if (matchArray==null) {
	  alert("Email address seems incorrect (check @ and .'s)");
	  return false;
  }
  var user=matchArray[1];
  var domain=matchArray[2];

  for (i=0; i<user.length; i++) {
	  if (user.charCodeAt(i)>127) {
		  alert("Ths username contains invalid characters.");
		  return false;
   	  }
  }

  for (i=0; i<domain.length; i++) {
	  if (domain.charCodeAt(i)>127) {
		  alert("Ths domain name contains invalid characters.");
		  return false;
   	  }
  }

  if (user.match(userPat)==null) {
	  alert("The username doesn't seem to be valid.");
	  return false;
  }

  var IPArray=domain.match(ipDomainPat);

  if (IPArray!=null) {
	  for (var i=1;i<=4;i++) {
		  if (IPArray[i]>255) {
			  alert("Destination IP address is invalid!");
			  return false;
   		  }
	  }
	  //return true;
  }

  var atomPat=new RegExp("^" + atom + "$");
  var domArr=domain.split(".");
  var len=domArr.length;

  for (i=0;i<len;i++) {
	  if (domArr[i].search(atomPat)==-1) {
		  alert("The domain name does not seem to be valid.");
		  return false;
   	  }
  }

  if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
	  alert("The address must end in a well-known domain or two letter " + "country.");
	  return false;
  }

  if (len<2) {
	  alert("This address is missing a hostname!");
	  return false;
  }

  //return true;
}



// --------------------------------- Emails ---------------------------------

function email() {
var add = '<a href="mailto:info@priestleyandferraro.com">info@priestleyandferraro.com</a>';
document.write(add);
}