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

function ShowPic(sImage)
 {
 sImage = "images/" + sImage + ".png";
 document.ShowRoom.src = sImage;
 }
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) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); 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 checkBookingForm(){
		
	// quickie references to my fields
	var name = document.getElementById('name');
	var email = document.getElementById('email');
	var EventType = document.getElementById('EventType');
	var Date = document.getElementById('Date');
	var Time = document.getElementById('Time');
	var Location = document.getElementById('Location');
	var HowManyPeople = document.getElementById('HowManyPeople');
	var ModelsDress = document.getElementById('ModelsDress');
			
	// check the inputs  (main function nav)
	if (alphaField(name, "mand", "name.")) {
		if (emailField(email, "mand", "valid email address."))	{
			if (selectField(EventType, "opt", "event type."))	{
				if(alphaNumField(Date, "mand", "event date.")) {
					if(alphaNumField(Time, "opt", "event time.")) {
						if(alphaNumField(Location, "mand", "the location of your event.")) {
							if(selectField(HowManyPeople, "opt", "number of guests.")) {
								if (selectField(ModelsDress, "opt", "preference for our models' dress code.")) {
									return true;
								}
							}
						}
					}
				}
			}
		}
	}
return false;
}

function checkVotingForm(){
		
	// quickie references to my fields
	var name = document.getElementById('name');
	var email = document.getElementById('email');
	var favouritemodel = document.getElementById('favouritemodel');
	var modelsstate = document.getElementById('modelsstate');
			
	// check the inputs  (main function nav)
	if (alphaField(name, "mand", "name.")) {
		if (emailField(email, "mand", "valid email address."))	{
			if (alphaField(favouritemodel, "mand", "favourite model's name."))	{
				if(selectField(modelsstate, "mand", "You haven't selected the state from which your model comes.")) {
					return true;
				}
			}
		}
	}
return false;
}

// function for checking alpha-only text fields
function alphaField(element, which, fieldDesc) {
	var alphaExp = /^[-a-zA-Z ']+$/;
	if ((which == 'mand') && (element.value.length < 2)) {
		var shortStub = 'Please enter your ';
		alert(shortStub + fieldDesc);
		element.focus(); // set the focus to this input
		return false;
	} else if ((element.value.length > 1) && (!element.value.match(alphaExp))) {
	var wrongStub = 'Please enter only letters for your ';
		alert(wrongStub + fieldDesc);
		element.focus();
		return false;
	}else {
		return true;
	}
}

// function for checking alphanumeric text fields
function alphaNumField(element, which, fieldDesc) {
	var alphaNumExp = /^[-0-9a-zA-Z' /]+$/;
	if ((which == 'mand') && (element.value.length < 2)) {
		var shortStub = 'Please enter your ';
		alert(shortStub + fieldDesc);
		element.focus(); // set the focus to this input
		return false;
	} else if ((element.value.length > 1) && (!element.value.match(alphaNumExp))) {
	var wrongStub = 'Please enter only letters and numbers for your ';
		alert(wrongStub + fieldDesc);
		element.focus();
		return false;
	}else {
		return true;
	}
}

// function for checking dropdown fields
function selectField(element, which, message){
	if ((which == 'mand') && (element.value == '')) {
		alert(message);
		element.focus();
		return false;
	} else {
		return true;
	}
}
	
// function for checking  telephone number fields. we allow numbers and spaces.
function PhoneField(element, which, fieldDesc) {
	var NumExp = /^[- 0-9]+$/;
	if ((which == 'mand') && (element.value.length < 7)) {
		var shortStub = 'Please enter your ';
		alert(shortStub + fieldDesc);
		element.focus(); // set the focus to this input
		return false;
	} else if ((element.value.length > 1) && (!element.value.match(NumExp))) {
	var wrongStub = 'Please enter only numbers for your ';
		alert(wrongStub + fieldDesc);
		element.focus();
		return false;
	} else {
		return true;
	}
}

// function for quickly checking email format (check again on server side)	
function emailField(element, which, fieldDesc){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if ((which == 'mand') && (element.value.length < 6)) {
		var shortStub = 'Please enter your ';
		alert(shortStub + fieldDesc);
		element.focus(); // set the focus to this input
		return false;
	} else if (element.value.match(emailExp)) {
		return true;
	} else {
		var wrongStub = 'Please check the format of your ';
		alert(wrongStub + fieldDesc);
		element.focus();
		return false;
	}
}