var req_fields = new Array('username','password','first_name','last_name','address','zip','city');
req_fields.push('last_ad');
var reg_fields = new Array('username','password','company','orgnr','first_name','last_name','address','address_more','zip','city','country','phone','mobile','fax');
reg_fields.push('last_ad');

var httpClient = null;
var commentClient = null;
var forumClient = null;
var mainarea = new String('mainarea/');
var webpage = new String('webpages/');
var expert = new String('expert/');
var messages = new String('messages/');
var functions = new String('functions/');
var theEnchilada = new String();
var part_blowup_pic = new Array();
var num_part_pics = new Number(4);

var errorMessage = new String("Felaktigheter i formuläret!\n\nVänligen kontrollera fältet i formuläret som är röd markerad!\n\n");
var oldBrowser = new String("Vänligen kontrollera din webläsare, den verkar vara av en tidigare version än vad som krävs av BåtSkroten.\nFör mer information läs våran FAQ");
var emptyMessage = new String("Vänligen skriv ett medelande!");
var serverError = new String("Ett fel har uppstått på servern! Webmaster är informerad.");

// Dummy function, used to ensure we have a valid object for onclick
function do_nothing()
{
  return(true);
}

function advanced_search ()
{
  // Silly IE
  var what = new String(document.forms['advancedsearch'].elements['what'].value);
  var category = new Number(parseInt(document.forms['advancedsearch'].elements['category'].value));

  what = what.replace(/^\s+|\s+$/g, '');
  document.getElementById('what').value = what;

  if((what.length < 2) && (category < 1))
  {
	alert("vänligen välj en kategori att visa eller ange något att söka efter!");
	return(false);
  }

  return(true);
}

function forum_post_validation()
{
  var what = new String(document.getElementById('what').value);

  if(what == 'new')
  {
	var subject = new String(document.getElementById('subject').value);
	subject = subject.replace(/^\s+|\s+$/g, '');
	document.getElementById('subject').value = subject;
	if(subject.length < 2)
	{
	  document.getElementById('subject').style.backgroundColor = "#FF0000";
	  document.getElementById('subject').focus();
	  alert(errorMessage);
	  return(false);
	}
  }

  var message = new String(document.getElementById('message').value);
  message = message.replace(/^\s+|\s+$/g, '');
  document.getElementById('message').value = message;

  if(message.length < 2)
  {
	document.getElementById('message').style.backgroundColor = "#FF0000";
	document.getElementById('message').focus();
	alert('Vänligen skriv ett inlägg');
	return(false);
  }

  if(!test_whatever())
  {
	return(false);
  }

  return(true);
}


// Fetch the images attached to the post
function view_forum_attachment(id)
{
  if(document.getElementById('forum_attachment'))
  {
	var box = document.getElementById('forum_attachment');
	var ypos;
	var xpos;
	var scrolledY;
	var httpClient = null;

	// Ensure that all the pics are set to "blank" before proceeding
	// A thread can have multiple posts with attachements
	document.getElementById('forum_blowup').src = "/logos/tom.gif";
	document.getElementById('one').src = "/logos/tom.gif";
	document.getElementById('two').src = "/logos/tom.gif";
	document.getElementById('three').src = "/logos/tom.gif";
	document.getElementById('four').src = "/logos/tom.gif";
	document.getElementById('one').setAttribute("onclick", "return do_nothing()");
	document.getElementById('two').setAttribute("onclick", "return do_nothing()");
	document.getElementById('three').setAttribute("onclick", "return do_nothing()");
	document.getElementById('four').setAttribute("onclick", "return do_nothing()");

	if(self.pageYOffset)
	{
	  scrolledY = self.pageYOffset;
	} else if(document.documentElement && document.documentElement.scrollTop)
	{
	  scrolledY = document.documentElement.scrollTop;
	} else if(document.body)
	{
	  scrolledY = document.body.scrollTop;
	}

	// The center of the browser window
	xpos = Math.round((document.body.clientWidth / 2) - (box.offsetWidth / 2));
	// 50px down from the top
    ypos = Math.round(scrolledY + 50);
	box.style.top =  ypos + "px";
	box.style.left = xpos + "px";
	box.style.visibility = "visible";

	httpClient = mk_browser();

	if(httpClient != null)
	{
	  document.body.style.cursor = 'wait';
	  httpClient.onreadystatechange = forum_view_attachment_callback;
	  httpClient.open('GET', functions + 'grab_thread_attachments.php?id=' + id, true);
	  httpClient.send(null);
	}
  }

  return false;
}

// Callback for the forum
function forum_view_attachment_callback()
{
  if(httpClient.readyState == 4)
  {
	if(httpClient.status == 200)
	{
		// We cannot expect that a browser can eval a json object.. Parse the raw output
		document.body.style.cursor = 'default';
		var tmp = new String();
		var t = new String();
		var b = new String();
		var o = new String();
		var change_pic = new String("document.getElementById('forum_blowup').src=");
		var lines = new Array();
		var files = new Array();
		var thumbs = new Array('one','two','three','four');
		var i = new Number(0);

		tmp = httpClient.responseText;
		lines = tmp.split("\n");

		for(i = 0; i < lines.length; i++)
		{
		  tmp = lines[i];
		  if(tmp.length > 5)
		  {
			files = tmp.split('#');

			b = files[0];
			t = files[1];
			o = thumbs[i]

			if(i == 0)
			{
			  document.getElementById('forum_blowup').src = b;
			}

			// Populate the thumb src and the onclick
			document.getElementById('' + o).src = t;
			document.getElementById('' + o).setAttribute("onclick", change_pic + "'" + b + "'");
		  }
		}
		// alert(tmp);
	} else {
		// Catch the error
		document.body.style.cursor = 'default';
		alert("Ett fel uppstod på servern!");
	}
  }
}

function test_login_form()
{
  var username = new String(document.getElementById('login_username').value);
  var password = new String(document.getElementById('login_password').value);

  username = username.replace(/\s/g, '');
  password = password.replace(/\s/g, '');

  document.getElementById('login_username').value = username;
  document.getElementById('login_password').value = password;

  if(!username)
  {
	document.getElementById('login_username').style.backgroundColor = "#FF0000";
	document.getElementById('login_username').focus();
	alert(errorMessage);
	return false;
  }

  if(!validateEmail(username))
  {
	document.getElementById('login_username').style.backgroundColor = "#FF0000";
	document.getElementById('login_username').focus();
	alert(errorMessage);
	return false;
  }

  if(!password)
  {
	document.getElementById('login_password').style.backgroundColor = "#FF0000";
	document.getElementById('login_password').focus();
	alert(errorMessage);
	return false;
  }

  return true;
}

// Form verification for scrap request
function send_scrap_request()
{
  var tmp = new String();
  var fields = new Array('brand', 'length', 'width', 'weight', 'description', 'name', 'phone', 'email', 'location');
  var i = new Number();

  // Image password
  if(!test_whatever()) { return false; }

  // Trim the fields
  for(i = 0; i <= (fields.length - 1); i++)
  {
	tmp = document.getElementById(fields[i]).value;
	tmp = tmp.replace(/^\s+|\s+$/g, '');
	document.getElementById(fields[i]).value = tmp;
  }

  // Ensure they do not submit blank forms
  if(!document.getElementById('name').value)
  {
	document.getElementById('name').style.backgroundColor = "#FF0000";
	document.getElementById('name').focus();
	alert(errorMessage);
	return false;
  }

  if((!document.getElementById('phone').value) && (!document.getElementById('email').value))
  {
	document.getElementById('phone').style.backgroundColor = "#FF0000";
	document.getElementById('phone').focus();
	alert(errorMessage);
	return false;
  }

  if(!document.getElementById('location').value)
  {
	document.getElementById('location').style.backgroundColor = "#FF0000";
	document.getElementById('location').focus();
	alert('Vänligen ange vart skrovet finns att avhämtas!');
	return false;
  }


  return(true);
}

// Returns the checked item in a radio button list
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 "";
}

// Create the http request object
function mk_browser()
{
  httpClient = null;

  // For now we must test for IE5 and IE6
  if(window.XMLHttpRequest) {
	httpClient = new XMLHttpRequest();
  } else if(window.ActiveXObject) {
	httpClient = new ActiveXObject("Microsoft.XMLHTTP");
  }

  if(httpClient != null)
  {
	return(httpClient);
  }

  alert(oldBrowser);

  return(httpClient);
}

function viewcomments()
{
  if(document.getElementById('comments').style.visibility == "hidden")
  {
	document.getElementById('comments').style.visibility = "visible";
	document.getElementById('comments').style.display = 'inline';
  } else {
	document.getElementById('comments').style.visibility = "hidden";
	document.getElementById('comments').style.display = "none";
  }

  return true;
}

function advanced_search_part()
{
  var what = new String(document.getElementById('search_string').value);
  var category = new String(document.getElementById('category').value);

  // Trim the search string. Search strategy is selected inside
  what = what.replace(/^\s+|\s+$/g,'');
  what = what.replace(/\s+/g,' ');
  document.getElementById('search_string').value = what;

  if(!what)
  {
	alert('Vänligen ange något eller några sökord');
	return false;
  }

  theEnchilada   = 'what=' + encodeURIComponent(what);
  theEnchilada  += '&category=' + encodeURIComponent(category);

  httpClient = mk_browser();

  if(httpClient != null)
  {
	document.body.style.cursor = 'wait';
	httpClient.open('GET', mainarea + 'nm_search.php?' + theEnchilada, true);
	httpClient.onreadystatechange = load_mainpage_callback;
	httpClient.send(null);
  }

  return false;
}

function step_one_lost_password()
{
  var tmp = new String();

  theEnchilada = '';

  tmp = document.getElementById('last_ad').value;
  tmp = tmp.replace(/\s/g,'');
  document.getElementById('last_ad').value = tmp;

  tmp = document.getElementById('the_username').value;
  tmp = tmp.replace(/\s/g,'');
  document.getElementById('the_username').value = tmp;

  if(!document.getElementById('the_username').value)
  {
	document.getElementById('the_username').style.backgroundColor = "#FF0000";
	document.getElementById('the_username').focus();
	alert(errorMessage);
	return false;
  }

  if(!validateEmail(document.getElementById('the_username').value))
  {
	document.getElementById('the_username').style.backgroundColor = "#FF0000";
	document.getElementById('the_username').focus();
	alert('E-Post adressen är felaktig, vänligen korrigera!');
	return false;
  }

  if(!document.getElementById('last_ad').value)
  {
	document.getElementById('last_ad').style.backgroundColor = "#FF0000";
	document.getElementById('last_ad').focus();
	alert(errorMessage);
	return false;
  }

  theEnchilada  = 'last_ad' + '=' + document.getElementById('last_ad').value + '&';
  theEnchilada += 'username' + '=' + document.getElementById('the_username').value + '&';

  httpClient = mk_browser();

  if(httpClient != null)
  {
	document.body.style.cursor = 'wait';
	httpClient.open('GET', mainarea + 'nm_recoverpassword.php?' + theEnchilada, true);
	httpClient.onreadystatechange = load_mainpage_callback;
	httpClient.send(null);
  }

  return false;
}


function not_member()
{
  alert("Vänligen logga in!\n\nDu måste vara inloggad för att använda den här funktionen");
  return(false);
}

function browse_category(category)
{
  window.location.href = 'nm_advancedsearch.php?by_select_list=1&category=' + category;
  return true;
}


function test_whatever()
{
  var kvack = new String(document.getElementById('last_ad').value);

  kvack = kvack.replace(/\s/g, '');

  document.getElementById('last_ad').value = kvack;

  if(!kvack)
  {
	document.getElementById('last_ad').style.backgroundColor = "#FF0000";
	document.getElementById('last_ad').focus();
	alert(errorMessage);
	return false;
  }

  return true;
}

// Update user password
function new_password()
{
  var tmp = new String();

  if(!test_whatever())
  {
	return false;
  }

  tmp = document.getElementById('password').value;
  tmp = tmp.replace(/\s/g,'');
  document.getElementById('password').value = tmp;

  if(!document.getElementById('password').value)
  {
	document.getElementById('password').style.backgroundColor = "#FF0000";
	document.getElementById('password').focus();
	alert(errorMessage);
	return false;
  }

  if(tmp.length < 7)
  {
	document.getElementById('password').style.backgroundColor = "#FF0000";
	document.getElementById('password').focus();
	alert("Vänligen välj ett lösenord som är minst 8 tecken");
	return false;
  }

  tmp = document.getElementById('password_confirm').value;
  tmp = tmp.replace(/\s/g,'');
  document.getElementById('password_confirm').value = tmp;

  if(!document.getElementById('password_confirm').value)
  {
	document.getElementById('password_confirm').style.backgroundColor = "#FF0000";
	document.getElementById('password_confirm').focus();
	alert(errorMessage);
	return false;
  }

  if(document.getElementById('password').value != document.getElementById('password_confirm').value)
  {
	document.getElementById('password').value = '';
	document.getElementById('password_confirm').value = '';
	document.getElementById('password').style.backgroundColor = "#FF0000";
	document.getElementById('password').focus();
	alert('Vänligen skriv in lösenordet igen, dom var inte identiska!');
	return false;
  }

  tmp = document.getElementById('username').value;
  tmp = tmp.replace(/\s/g,'');
  document.getElementById('username').value = tmp;


  if(!document.getElementById('username').value)
  {
	alert(errorMessage);
	return false;
  }

  return true;
}

// First step to recover the password
function recover_password()
{
  var username = new String(document.getElementById('the_username').value);

  username.replace(/\s/g, '');
  document.getElementById('the_username').value = username;

  // We must have a username to work on
  if(!username)
  {
	document.getElementById('the_username').style.backgroundColor = "#FF0000";
	document.getElementById('the_username').focus();
	alert(errorMessage);
	return false;
  }

  if(!validateEmail(username))
  {
	document.getElementById('the_username').style.backgroundColor = "#FF0000";
	document.getElementById('the_username').focus();
	alert(errorMessage);
	return false;
  }

  // Test the image field for content
  if(!test_whatever())
  {
	return false;
  }

  return true;
}

// Basic test that there is content in the user form
function validate_userform()
{
  var i = new Number(0);

  // Verify that there is content in the req fields
  for(i = 0; i < req_fields.length; i++)
  {
	if(document.getElementById(req_fields[i]))
	{
		if(!document.getElementById(req_fields[i]).value)
		{
			document.getElementById(req_fields[i]).style.backgroundColor = "#FF0000";
			document.getElementById(req_fields[i]).focus();
			alert(errorMessage);
			return false;
		}
	}
  }

  return true;
}

// New member
function signup_new_member()
{
  var temp_str = new String();

  // Format the form fields
  for(i = 0; i < reg_fields.length; i++)
  {
	// Clean the leading and trailing whitespaces from the input
	temp_str = document.getElementById(reg_fields[i]).value;
	temp_str = temp_str.replace(/^\s+|\s+$/g,'');
	document.getElementById(reg_fields[i]).value = temp_str;
  }

  // Username and Password my be white washed
  temp_str = document.getElementById('username').value;
  temp_str = temp_str.replace(/\s/g,'');
  document.getElementById('username').value = temp_str;

  temp_str = document.getElementById('password').value;
  temp_str = temp_str.replace(/\s/g,'');
  document.getElementById('password').value = temp_str;

  if(!test_whatever())
  {
	return false;
  }

  // Check the reqired fields
  if(!validate_userform()) { return false; }

  if(!document.getElementById('approve').checked)
  {
	document.getElementById('membership_rules').style.backgroundColor = "#FF0000";
	document.getElementById('membership_rules').focus();
	alert('För att bli medlem på båtskroten.se måste du godkänna villkoren!');
	return(false);
  }

  // Test that it is a valid username
  if(!validateEmail(document.getElementById('username').value))
  {
	document.getElementById('username').style.backgroundColor = "#FF0000";
	document.getElementById('username').focus();
	alert('Vänligen kontrollera ditt användarnamn!');
	return false;
  }

  // Test that the password is of minimal length
  if(temp_str.length < 7)
  {
	document.getElementById('password').style.backgroundColor = "#FF0000";
	document.getElementById('password').focus();
	alert("Vänligen kontrollera ditt lösenord - det är för enkelt!\nVälj ett som är minst 7 tecken");
	return false;
  }

  return true;
}

// Simple test for positive integer
function isNumerical(form_value)
{
  var testNum = new RegExp(/(^\d+$)/);
  return testNum.test(form_value);
}

// Simple test on format
function validateEmail(emailAddress)
{
  var emailRegexp = new RegExp(/^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/);
  return emailRegexp.test(emailAddress);
}