/*
Created By: Chris Campbell
Website: http://particletree.com
Date: 2/1/2006

Inspired by the lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
*/

/*-------------------------------GLOBAL VARIABLES------------------------------------*/

var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;

/*-----------------------------------------------------------------------------------------------*/

//Browser detect script origionally created by Peter Paul Koch at http://www.quirksmode.org/

function getBrowserInfo() {
	if (checkIt('konqueror')) {
		browser = "Konqueror";
		OS = "Linux";
	}
	else if (checkIt('safari')) browser 	= "Safari"
	else if (checkIt('omniweb')) browser 	= "OmniWeb"
	else if (checkIt('opera')) browser 		= "Opera"
	else if (checkIt('webtv')) browser 		= "WebTV";
	else if (checkIt('icab')) browser 		= "iCab"
	else if (checkIt('msie')) browser 		= "Internet Explorer"
	else if (!checkIt('compatible')) {
		browser = "Netscape Navigator"
		version = detect.charAt(8);
	}
	else browser = "An unknown browser";

	if (!version) version = detect.charAt(place + thestring.length);

	if (!OS) {
		if (checkIt('linux')) OS 		= "Linux";
		else if (checkIt('x11')) OS 	= "Unix";
		else if (checkIt('mac')) OS 	= "Mac"
		else if (checkIt('win')) OS 	= "Windows"
		else OS 								= "an unknown operating system";
	}
}

function checkIt(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

/*-----------------------------------------------------------------------------------------------*/

Event.observe(window, 'load', initialize, false);
Event.observe(window, 'load', getBrowserInfo, false);
Event.observe(window, 'unload', Event.unloadCache, false);

var lightbox = Class.create();

lightbox.prototype = {

	yPos : 0,
	xPos : 0,

	initialize: function(ctrl) {
		this.content = ctrl.href;
		Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
		ctrl.onclick = function(){return false;};
	},

	// Turn everything on - mainly the IE fixes
	activate: function(){
		if (browser == 'Internet Explorer'){
			this.getScroll();
			this.prepareIE('100%', 'hidden');
			this.setScroll(0,0);
			this.hideSelects('hidden');
		}
		this.displayLightbox("block");
	},

	// Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox
	prepareIE: function(height, overflow){
		bod = document.getElementsByTagName('body')[0];
		bod.style.height = height;
		bod.style.overflow = overflow;

		htm = document.getElementsByTagName('html')[0];
		htm.style.height = height;
		htm.style.overflow = overflow;
	},

	// In IE, select elements hover on top of the lightbox
	hideSelects: function(visibility){
		selects = document.getElementsByTagName('select');
		for(i = 0; i < selects.length; i++) {
			selects[i].style.visibility = visibility;
		}
	},

	// Taken from lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
	getScroll: function(){
		if (self.pageYOffset) {
			this.yPos = self.pageYOffset;
		} else if (document.documentElement && document.documentElement.scrollTop){
			this.yPos = document.documentElement.scrollTop;
		} else if (document.body) {
			this.yPos = document.body.scrollTop;
		}
	},

	setScroll: function(x, y){
		window.scrollTo(x, y);
	},

	displayLightbox: function(display){
		$('overlay').style.display = display;
		$('lightbox').style.display = display;
		if(display != 'none') this.loadInfo();
	},

	// Begin Ajax request based off of the href of the clicked linked
	loadInfo: function() {
		var myAjax = new Ajax.Request(
        this.content,
        {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
		);

	},

	// Display Ajax response
	processInfo: function(response){
		info = "<div id='lbContent'>" + response.responseText + "</div>";
		new Insertion.Before($('lbLoadMessage'), info)
		$('lightbox').className = "done";
		this.actions();
	},

	// Search through new links within the lightbox, and attach click event
	actions: function(){
		lbActions = document.getElementsByClassName('lbAction');

		for(i = 0; i < lbActions.length; i++) {
			Event.observe(lbActions[i], 'click', this[lbActions[i].rel].bindAsEventListener(this), false);
			lbActions[i].onclick = function(){return false;};
		}

	},

	// Example of creating your own functionality once lightbox is initiated
	insert: function(e){
	   link = Event.element(e).parentNode;
	   Element.remove($('lbContent'));

	   var myAjax = new Ajax.Request(
			  link.href,
			  {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
	   );

	},

	// Example of creating your own functionality once lightbox is initiated
	deactivate: function(){
		Element.remove($('lbContent'));

		if (browser == "Internet Explorer"){
			this.setScroll(0,this.yPos);
			this.prepareIE("auto", "auto");
			this.hideSelects("visible");
		}

		this.displayLightbox("none");
	}
}
  
/*-----------------------------------------------------------------------------------------------*/

// Onload, make all links that need to trigger a lightbox active
function initialize(){
	addLightboxMarkup();
	lbox = document.getElementsByClassName('lbOn');
	for(i = 0; i < lbox.length; i++) {
		valid = new lightbox(lbox[i]);
	}
}

// Add in markup necessary to make this work. Basically two divs:
// Overlay holds the shadow
// Lightbox is the centered square that the content is put into.
function addLightboxMarkup() {
	bod 				= document.getElementsByTagName('body')[0];
	overlay 			= document.createElement('div');
	overlay.id		= 'overlay';
	lb					= document.createElement('div');
	lb.id				= 'lightbox';
	lb.className 	= 'loading';
	lb.innerHTML	= '<div id="lbLoadMessage">' +
						  '<p>Loading...</p>' +
						  '</div>';
	bod.appendChild(overlay);
	bod.appendChild(lb);
}

// Check validations
function validate(){
    document.getElementById('errormessage').style.display = 'none';

    if(document.getElementById('Login').value==''){
      document.getElementById('errormessage').style.display = 'inline';
      document.getElementById('errmsg').innerHTML = '<font color="red">MIVNET id is required</font>';
      return false;
    }

    if(document.getElementById('Password').value==''){
      document.getElementById('errormessage').style.display = 'inline';
      document.getElementById('errmsg').innerHTML = '<font color="red">Password is required</font>';
      return false;
    }

    var username=document.getElementById('Login').value;
    var password=document.getElementById('Password').value;
    var remember_me=document.getElementById('remember_me').checked;

    CheckUserLogin(username,password,remember_me);
}

// Ajax to check login details
    var xmlHttp

	function GetXmlHttpObject(){
		var objXMLHttp=null
		if (window.XMLHttpRequest){
		objXMLHttp=new XMLHttpRequest()
		}else if (window.ActiveXObject){
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
		}
		return objXMLHttp
	}

	function CheckUserLogin(username,password, remember_me){
		xmlHttp=GetXmlHttpObject()
		if (xmlHttp==null){
		    alert ("Browser does not support HTTP Request")
		    return
	    }

    	var url="./framework/scripts/checklogin.php?username="+username+"&password="+escape(password)+"&remember_me="+remember_me
    	xmlHttp.open("POST",url,true)
    	xmlHttp.onreadystatechange = function () {
    	if (xmlHttp.readyState == 4) {
    	    if(xmlHttp.responseText =='success'){
    	        var querystr = window.location.search.substring(1);

                if(querystr!='')
                {
                  var last = querystr.split('&');
				  var last1 = last[0].split('=');
                  if(last1[0] == 'msg')
                  {
                     document.location.href="account.html";
                  }
                  else if(last1[0] == 'last_page')
                  {
                    last_page_ = querystr.split('=');
					var q ="";
					if(last_page_[1]!='' && last_page_[1]!=undefined)
					{
						for(n=1;n<last_page_.length;n++)
						{
							if(n!=1)
								q += '='+last_page_[n];
							else
								q += last_page_[n];
						}
						document.location.href=q;
					}					
                  }

                }
                else
                {
                  document.location.href="account.html";
                }
            } else {

    	        document.getElementById('errormessage').style.display = 'inline';
    	        document.getElementById("errmsg").innerHTML = '<font color="red">'+xmlHttp.responseText+'</font>';
    	    }
    	}
    	};
    	xmlHttp.send(null);
	}

    function validateforgott(){
        var type = document.getElementsByName('forgott_type');
        var mivnet_id='';
        var email = '';
        if(document.getElementById('forgott_type_P').checked){
          if(document.getElementById('mivnetid').value==''){
            document.getElementById('errormessage_forgot').style.display = 'inline';
            document.getElementById('errmsg_forgot').innerHTML = '<font color="red">MIVNET id is required</font>';
            return false;
          } else {
            mivnet_id=document.getElementById('mivnetid').value;
          }
        }

        if(document.getElementById('forgott_type_I').checked){
          if(document.getElementById('email').value==''){
            document.getElementById('errormessage_forgot').style.display = 'inline';
            document.getElementById('errmsg_forgot').innerHTML = '<font color="red">Email is required</font>';
            return false;
          } else {
            email=document.getElementById('email').value;
          }
        }

         CheckUser_forgottpass(mivnet_id,email);
    }

    function CheckUser_forgottpass(id,email){

		xmlHttp=GetXmlHttpObject()
		if (xmlHttp==null){
		alert ("Browser does not support HTTP Request")
		return
	    }

    	var url="./framework/scripts/check_forgottpass.php?mivnetid="+id+"&email="+email
    	xmlHttp.open("POST",url,true)
    	xmlHttp.onreadystatechange = function () {
    	if (xmlHttp.readyState == 4) {

    	    if(xmlHttp.responseText !='emailid' && xmlHttp.responseText !='MIVNETid'){
                document.getElementById('forgottpassfrm').style.display='none';
                document.getElementById('loginfrm').style.display='inline';

                 document.getElementById('errormessage').style.display = 'inline';
                 //document.getElementById('errmsg').innerHTML = '<font color="#2B8BD4">An email with details is sent to you.</font>';
				 document.getElementById('errmsg').innerHTML = '<font align="center" color="#2B8BD4">An Email has been sent. Please check your e-mail account "<b>'+xmlHttp.responseText.toUpperCase()+'</b>" to recover your MIVNET login credentials</font>';
    	    } else {
    	        document.getElementById('errormessage_forgot').style.display = 'inline';
    	        document.getElementById("errmsg_forgot").innerHTML = '<font color="red">Invalid login details. Please try again.</font>';
    	    }

    	}
    	};
    	xmlHttp.send(null);
	}