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

function validateNewsletter(form) {
  var email = form.email.value;

  if(email == "") {
    inlineMsg('email','<strong>Error</strong><br />You must enter your email.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','<strong>Error</strong><br />You have entered an invalid email.',2);
    return false;
  }

  return true;
}

function validateContact(form) {
  var name = form.name.value;
	var email = form.email.value;
	var message = form.message.value;

	if(name == "") {
    inlineMsg('name','<strong>Error</strong><br />You must enter your name.',2);
    return false;
  }
  if(email == "") {
    inlineMsg('email','<strong>Error</strong><br />You must enter your email.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','<strong>Error</strong><br />You have entered an invalid email.',2);
    return false;
  }
	if(message == "") {
    inlineMsg('message','<strong>Error</strong><br />You must enter a message.',2);
    return false;
  }

  return true;
}

function validateCC(form) {
  var ccNumber = form.ccNumber.value;

  if(ccNumber == "") {
    inlineMsg('ccNumber','<strong>Error</strong><br />You must enter your credit card number.',2);
    return false;
  }

  return true;
}

function validateAddress(form) {
  var email 				= form.email.value;
	var ship_fName 		= form.ship_fName.value;
	var ship_lName 		= form.ship_lName.value;
	var ship_address 	= form.ship_address.value;
	var ship_city 		= form.ship_city.value;
	var ship_state 		= form.ship_state.value;
	var ship_zip 			= form.ship_zip.value;
	var same 					= form.same;
	
	var bill_fName 		= form.bill_fName.value;
	var bill_lName 		= form.bill_lName.value;
	var bill_address 	= form.bill_address.value;
	var bill_city 		= form.bill_city.value;
	var bill_state 		= form.bill_state.value;
	var bill_zip 			= form.bill_zip.value;

  if(email == "") {
    inlineMsg('email','<strong>Error</strong><br />You must enter your email.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','<strong>Error</strong><br />You have entered an invalid email.',2);
    return false;
  }
	
	if(ship_fName == "") {
    inlineMsg('ship_fName','<strong>Error</strong><br />You must enter your first name.',2);
    return false;
  }
	
	if(ship_lName == "") {
    inlineMsg('ship_lName','<strong>Error</strong><br />You must enter your last name.',2);
    return false;
  }
	
	if(ship_address == "") {
    inlineMsg('ship_address','<strong>Error</strong><br />You must enter your adress.',2);
    return false;
  }
	
	if(ship_city == "") {
    inlineMsg('ship_city','<strong>Error</strong><br />You must enter your city.',2);
    return false;
  }
	
	if(ship_state == "") {
    inlineMsg('ship_state','<strong>Error</strong><br />You must enter your state.',2);
    return false;
  }
	
	if(ship_zip == "") {
    inlineMsg('ship_zip','<strong>Error</strong><br />You must enter your zip.',2);
    return false;
  }
	
	if(!same.checked && bill_fName == "") {
    inlineMsg('bill_fName','<strong>Error</strong><br />You must enter your first name.',2);
    return false;
  }
	
	if(!same.checked && bill_lName == "") {
    inlineMsg('bill_lName','<strong>Error</strong><br />You must enter your last name.',2);
    return false;
  }
	
	if(!same.checked && bill_address == "") {
    inlineMsg('bill_address','<strong>Error</strong><br />You must enter your adress.',2);
    return false;
  }
	
	if(!same.checked && bill_city == "") {
    inlineMsg('bill_city','<strong>Error</strong><br />You must enter your city.',2);
    return false;
  }
	
	if(!same.checked && bill_state == "") {
    inlineMsg('bill_state','<strong>Error</strong><br />You must enter your state.',2);
    return false;
  }
	
	if(!same.checked && bill_zip == "") {
    inlineMsg('bill_zip','<strong>Error</strong><br />You must enter your zip.',2);
    return false;
  }
	
	

  return true;
}



// 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);
  }
}

// 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.gif"; 
}