/* Function that loads one or more image files into the Web browser*/
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 that finds images. */
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;
}

/* Functions that swap images. */
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 hideAnniversary() {
  document.getElementById("anniversary").style.visibility = "hidden";
}

function showAnniversary() {
  document.getElementById("anniversary").style.visibility = "visible";
}

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;
}

// This function opens a new browser window

function NewWindow(mypage, myname, w, h, scroll) {
var winl = (screen.width - w) / 2;
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'
win = window.open(mypage, myname, winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

/* Function to validate the data entered into the form */

function FP_validateMailingListForm(f) {
	var the_email = f.email.value;

    if (f.name.value == "") {
      alert("Please enter your name.");
      return false;
    }
	if (the_email == "" || !the_email.indexOf(".") == "-1" || the_email.indexOf("@") == "-1") {
      alert("Please enter a valid email address.");
      return false;
    }
    return true;
}

function FP_validateFeedbackForm(f) {
	return true;
}

function FP_validateForm(f) {
	var msg;
	var emptyFields = "";
	var validEmail = true;
	var errors;
	
	// Loop through the elements of the form, checking for fields
	// that are empty and making a list of them. Also, this script
	// will look at the e-mail field and make sure that it is formatted
	// correctly, meaning that there is an "@" character in the address
	// and a "." character in the address.
	
	var e;
	for (var i = 0; i < f.length; i++ ) {
		e = f.elements[i];
		if (e.type == "text") { 
			// alert(e.value);
			if ((e.value == null) || (e.value == "")) { // Check to see if the field is empty
				emptyFields += "\n          " + e.name;
			}
		}
		if ((e.name == "email") && (e.value != null) && (e.value != "")) { // Check to see if it's the e-mail field
			// alert(e.value);
			if ((e.value.indexOf('@') > 0) && (e.value.indexOf('.') > 0)) { // Check for a well-formed e-mail address
				validEmail = true; 
			} else {
				validEmail = false;
			}
			// alert(validEmail);
		}
	}
	
	// Now if there were any errors, display the messages, and
	// return false to prevent the form from being submitted.
	// Otherwise return true.
	
	if (!emptyFields && validEmail) return true;
	
	msg =  "__________________________________________________________________\n\n";
	msg += "To join Friends of Bruno's, you must provide your name and e-mail address.\n";
	msg += "Please enter the required information and re-submit this form.\n";
	msg += "__________________________________________________________________\n\n";
	
	if (emptyFields) {
		msg += "- Please provide the following information:" + emptyFields + "\n";
	}
	
	if (!validEmail) {
		msg += "- Please enter a valid e-mail address\n";
	}
		
	alert(msg);
	return false;
}