// form validation function //
// Regular Expressions //
	var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
	var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);
	var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
	var regPhone = /^\d{3}\-\d{3}\-\d{4}$/;
	var regDate = /(0[1-9]|1[012])\/(0[1-9]|[12][0-9]|3[01])\/([0-9]{2,4})/i;

function validateContactUsForm(form) {
	var fullname = form.name.value;
	var email_address = form.email.value;
	var subject = form.subject.value;
	
	if(fullname == "") {
		inlineMsg('name','You must enter your full name.',5);
		return false;
	}
	
	if(email_address == "") {
		inlineMsg('email','Please provide your email address.',5);
		return false;
	}
	if(!email_address.match(emailRegex)) {
		inlineMsg('email','You have entered an invalid email address.',5);
		return false;
	}
	
	if(subject == '') {
		inlineMsg('subject','Please provide subject line.',5);
		return false;
		}
	
	return true;
	
}

function validateMemberPaymentForm(form) {
	var fname = form.fname.value;
	var lname = form.lname.value;
	var email = form.email.value;
	var address1 = form.address1.value;
	var state = form.state.value;
	var city = form.city.value;
	var zip = form.zip.value;
	
	if(fname == "") {
		inlineMsg('fname','You must enter your first name.',5);
		return false;
	}
	if(lname == "") {
		inlineMsg('lname','You must enter your last name.',5);
		return false;
	}

	if(email == "") {
		inlineMsg('email','Please provide your email address.',5);
		return false;
	}
	if(!email.match(emailRegex)) {
		inlineMsg('email','You have entered an invalid email address.',5);
		return false;
	}
	
	/*if(address1 == "") {
		inlineMsg('address1','please provide address line 1.',5);
		return false;
	}

	if(state == "") {
		inlineMsg('state','please provide your state.',5);
		return false;
	}

	if(city == "") {
		inlineMsg('city','please provide your city.',5);
		return false;
	}

	if(zip == "") {
		inlineMsg('zip','please provide your zip.',5);
		return false;
	}

	if(isNaN(zip)) {
		inlineMsg('zip','Zip Code must be numeric.',5);
		return false;
	}*/


	return true;
	
}

function validateMemberLoginForm(form) {
	var username = form.username.value;
	var password = form.password.value;
	
	if(username == "") {
		inlineMsg('username','Please provide your email address.',5);
		return false;
	}
	if(!username.match(emailRegex)) {
		inlineMsg('username','You have entered an invalid email address.',5);
		return false;
	}
	
	if(password == "") {
		inlineMsg('password','please provide password.',5);
		return false;
	}

	return true;
	
}

function validateForgotPasswordForm(form) {
	var email = form.email.value;
	
	if(email == "") {
		inlineMsg('email','Please provide your email address.',5);
		return false;
	}
	if(!email.match(emailRegex)) {
		inlineMsg('email','You have entered an invalid email address.',5);
		return false;
	}
	
	return true;
	
}

function validateChangePassForm(form) {
	var curpass = form.curpass.value;
	var newpass = form.newpass.value;
	var newpass1 = form.newpass1.value;
	
	if(curpass == "") {
		inlineMsg('curpass','please provide current password.',5);
		return false;
	}

	if(newpass == "") {
		inlineMsg('newpass','please provide new password.',5);
		return false;
	}

	if(newpass1 == "") {
		inlineMsg('newpass1','please provide new password again.',5);
		return false;
	}


	return true;
	
}

function validateNewsletterSubscriptionForm(form) {
	var email = form.email_address.value;
	var confirm_email = form.confirm_email.value;
	var first_name = form.first_name.value;
	var last_name = form.last_name.value;
	var aboutUs = form.about_us.value;
	var otherDetail = form.other_details.value;
	
	if(email == "") {
		inlineMsg('email_address','Please provide your email address.',5);
		return false;
	}
	if(!email.match(emailRegex)) {
		inlineMsg('email_address','You have entered an invalid email address.',5);
		return false;
	}
	if(confirm_email == "") {
		inlineMsg('confirm_email','Please provide the above email address again.',5);
		return false;
	}
	if(!confirm_email.match(emailRegex)) {
		inlineMsg('confirm_email','You have entered an invalid confirmation email address.',5);
		return false;
	}
	
	if(email !== confirm_email) {
		inlineMsg('confirm_email','email addresses does not match.',5);
		return false;
	}
	if(first_name == "") {
		inlineMsg('first_name','Please provide your first name.',5);
		return false;
	}
	if(!first_name.match(nameRegex)) {
		inlineMsg('first_name','You have entered an invalid first name.',5);
		return false;
	}
	if(last_name == '') {
		inlineMsg('last_name','Please provide your last name.',5);
		return false;
	}
	if(!last_name.match(nameRegex)) {
		inlineMsg('last_name','You have entered an invalid last name.',5);
		return false;
	}
	
	if(aboutUs == 'Other' && otherDetail == '') {
		inlineMsg('other_details','Please provide other source of information.',5);
		return false;
	}
	
	var subscription_type = form.elements['subscription_type'];
	var isSubscriptionChecked = getCheckedValue(subscription_type);
	if(isSubscriptionChecked == "") {
		inlineMsg('sub_type_err','please choose subscription.',5);
		return false;
	}
	
	var agreement1 = form.agreement1.checked;
	if(!agreement1) {
		alert("Please accept terms of services.");
	return false;
	}
	return true;
	
}
function makeTextBox(value){
	if(value=="Other")
	{
		document.getElementById("otherdetail").style.display="block";	
	}
	else
	{
		document.getElementById("otherdetail").style.display="none";
	}}

function displayNewMemberForm() {
	document.getElementById("new_member").style.display="block";
	document.getElementById("existing_member").style.display="none";	
}

function displayExistingMemberForm() {
	document.getElementById("existing_member").style.display="block";
	document.getElementById("new_member").style.display="none";	
}


function validateMemberLoginForSubscription(form) {
	var username = form.member_email.value;
	var password = form.password.value;
	
	var subscription_type = form.elements['member_subscription_type'];
	
	if(username == "") {
		inlineMsg('member_email','Please provide your email address.',5);
		return false;
	}
	if(!username.match(emailRegex)) {
		inlineMsg('member_email','You have entered an invalid email address.',5);
		return false;
	}
	
	if(password == "") {
		inlineMsg('password','please provide password.',5);
		return false;
	}
	
	var isSubscriptionChecked = getCheckedValue(subscription_type);
	if(isSubscriptionChecked == "") {
		inlineMsg('mem_sub_type_err','please choose subscription.',5);
		return false;
	}
	var agreement = form.agreement.checked;
	if(!agreement) {
		alert("Please accept terms of services.");
	return false;
	}
	return true;
}
	
function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}


// START OF MESSAGE SCRIPT //

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}
function isInteger(s)
{
      var i;
		s = s.toString();
      for (i = 0; i < s.length; i++)
      {
         var c = s.charAt(i);
         if (isNaN(c)) 
	   {
		//alert("Given value is not a number");
		return false;
	   }
      }
      return true;
}

// face the message box //
function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

// preload the arrow //
if(document.images) {
  arrow = new Image(7,80); 
  arrow.src = "../images/msg_arrow.png"; 
}