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;
}

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 MM_findObj(n, d) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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];}
}

window.onload = function()
{
	//debugger;
	MM_preloadImages('assets/images/image1.jpg','assets/images/u-tube2.jpg','assets/images/oxford1a.jpg','assets/images/bucka.jpg','assets/images/specials2.gif');
	//debugger;
	var loginBtn = document.getElementById('loginBtn');
	var cookie_value = get_Cookie("BourtonMillPageState");

	if(cookie_value=="false" || cookie_value==null )
	{
		requestNewsFromServer();
    }else
	{
    	loggedIn_showLinks(); 
    	requestNewsFromServer();
	}
	  var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-19341978-2']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();
};

function loggedIn_showLinks()
{
	    var loginBtn = document.getElementById('loginBtn');
		loginBtn.value="Logout";
    	var mySpan = document.createElement('span');
    	mySpan.innerHTML="";
    	var username = document.getElementById('usernameCell');
    	username.innerHTML="<span style='font-size:small;color: #7DB515';><strong>Welcome<br>" + get_Cookie("BourtonMillEdin") +
    	                   "</strong><span>";
    	username.appendChild(mySpan);
    	//<strong><a  href=\"#doNothing\" onclick=\"onDeleteJob("+ job.getId() +")\">Delete</a>
    	var linkDiv = document.createElement('div');
    	linkDiv.innerHTML="<span style='font-size:small;color: #7DB515';'><strong>" +
    	                  "<a  href='latest_news.htm'>Add/Edit News</a>" +
    	                  "</strong></span><br><span style='font-size:small;color: #7DB515';'><strong><a  href='passwordchanges.htm'>Change password</a></strong><span><br>" +
    	                  "<span style='font-size:small;color: #7DB515';'><strong><a  href='showPass.htm'>List Passes</a></strong><span>";
    	var password = document.getElementById('passwordCell');
    	password.innerHTML="";
    	password.appendChild(linkDiv);
    	mySpan = document.createElement('span');
     	mySpan.innerHTML="";
    	password.appendChild(mySpan);
    	
};

function get_Cookie(cookie_name)
{
	
	  var l_sCookieValue = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );
		
	  if (l_sCookieValue) 
	  {
	  	var returnStr = unescape(l_sCookieValue[2]);
		if(l_sCookieValue == "BourtonMillPageState")
		{
				returnStr = returnStr.substring(0,7);
		}
		return returnStr;
	  }
	  else 
	  {
	  	return null;
	  }
};

function trimAll(sString) 
{ 
	while (sString.substring(0,1) == ' ') 
	{ 
		sString = sString.substring(1, sString.length); 
	} 
	while (sString.substring(sString.length-1, sString.length) == ' ') 
	{ 
		sString = sString.substring(0,sString.length-1); 
	} 
	return sString; 
};

function set_Cookie( cookie_name , cookie_value)
{
	
	    var cookieValue = cookie_name + "=" + cookie_value + ";";
	    //alert("cookie name is: " + cookie_name +" value is: " +trimAll(cookie_value));
		document.cookie = cookieValue;
		//alert("now cookie is:  "+document.cookie);
};


function logout()
{
    var xhr = createXHRRequest();
	  
    xhr.onreadystatechange  = function()
    { 
	   // //debugger;
         if(xhr.readyState  == 4)
         {
              if(xhr.status  == 200) 
              {
	             var response = xhr.responseText;
	             if(response.indexOf("true") != -1)
	             {
	            	 //do something here
	             }
              } 
              else
              { 
	              alert("Error code " + xhr.status);
                 //document.ajax.PACKAGE:="Error code " + xhr.status;
              }

         }
    }; 

    xhr.open("POST", "/backend/logout", true); 
    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    var data = "username=" + get_Cookie("BourtonMillEdin") + "&bourtonBollos=" + get_Cookie("BourtonMillPageState");                  
    xhr.send(data);	
};


function trimAll(sString) 
{ 
	while (sString.substring(0,1) == ' ') 
	{ 
		sString = sString.substring(1, sString.length); 
	} 
	while (sString.substring(sString.length-1, sString.length) == ' ') 
	{ 
		sString = sString.substring(0,sString.length-1); 
	} 
	return sString; 
};

function validateBoxes()
{
	  if(trimAll(document.getElementById('usernameBox').value) == "")
	  {
		  alert("Invalid Username");
		  return false;
	  }
	  if(trimAll( document.getElementById('passwordBox').value) == "")
	  {
		  alert("Invalid Password");
		  return false;
	  }
	  return true;	
};

function verifyPassword()
{
	var loginBtn = document.getElementById('loginBtn');
	if(loginBtn.value=="Logout")
	{
		logout();
		set_Cookie("BourtonMillPageState","false");
		set_Cookie("BourtonMillEdin","");
		loginBtn.value="Sign In";
    	var myDiv = document.createElement('div');
    	myDiv.innerHTML=" <span class='style72'>Username</span> <input type='text' name='textfield' id='usernameBox'/>";
    	var username = document.getElementById('usernameCell');
    	username.innerHTML="";
    	username.appendChild(myDiv);
    	var password = document.getElementById('passwordCell');
    	password.innerHTML="";
    	myDiv = document.createElement('div');
    	myDiv.innerHTML="<span class='style72'>Password </span><input type='password' name='textfield2' id='passwordBox' />";
    	password.appendChild(myDiv);
    	
	}else
	{
		if(!validateBoxes())
		{
			return;
		}
		
		loginBtn.disabled=true;
	    var xhr = createXHRRequest();
		  
	    xhr.onreadystatechange  = function()
	    { 
		   // //debugger;
	         if(xhr.readyState  == 4)
	         {
	              if(xhr.status  == 200) 
	              {
		             //alert("Received:"  + xhr.responseText);
		             // //debugger;
		             var response = xhr.responseText;
		             var loggedIn=false;
		             if(response.indexOf("true") != -1)
		             {
		            	 document.getElementById('errorMsg').innerHTML="";
		            	 loggedIn=true
		             }else
		             {
		            	 document.getElementById('errorMsg').innerHTML="Incorrect username/password";
		             }
	                 // document.ajax.PACKAGE:="Received:"  + xhr.responseText;
	              } 
	              else
	              { 
	            	  alert("An error occured. Please check your entries and try again.");
	                 //document.ajax.PACKAGE:="Error code " + xhr.status;
	              }
	              document.getElementById('usernameBox').value = "";
	              document.getElementById('passwordBox').value = "";
	              if(loggedIn==true)
	              {
		                var sesssionID = response.split(":")[1];
	                	set_Cookie("BourtonMillPageState",sesssionID);
	                	set_Cookie("BourtonMillEdin",username);
	                	loggedIn_showLinks();    
	                  	//window.open("latest_news.htm","_self");
	              }else
	              {
	            	  set_Cookie("BourtonMillPageState","false");
	              }
	              loginBtn.disabled=false;
	         }
	    }; 

	     xhr.open("POST", "/backend/login", true); 
	    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	    var username = escape(document.getElementById('usernameBox').value);
	    var password = escape(document.getElementById('passwordBox').value);
	    var data = "username="+username+"&password="+password;                  
	    xhr.send(data);
	}
};


function createXHRRequest()
{
    var xhr;
    try {  xhr = new ActiveXObject('Msxml2.XMLHTTP');   }
    catch (e) 
    {
        try {   xhr = new ActiveXObject('Microsoft.XMLHTTP');    }
        catch (e2) 
        {
          try {  
	          xhr = new XMLHttpRequest();
	          }
          catch (e3) 
          {
	            xhr = false;
          }
        }
     }
    return xhr;
};

function addNews(news)
{
	//e.g. of l_jobs string <seperator>1<seperator>hdfsdstml<seperator>2<seperator>html for news 2<jobs> etc
	var array_news = news.split("<seperator>");
	var loop_index = 2;
	//"<marquee bgcolor='#E2E2E2' scrollamount='1'  scrolldelay='25' " +  "direction='up' hieght='100%' width='100%'>" + 
	var allnews = "<font size='2' color='#000000' >"; 

		
	if(array_news.length > 1)
	{
		//while(loop_index < array_news.length)
		//{
		    if(loop_index < array_news.length)
			{
		    	allnews = allnews + array_news[loop_index];
			}
		//	loop_index += 2;
		//}
		allnews = allnews.replace(/nwl/g,"<br>");
		allnews = allnews + "</font>";
		var mydiv = document.createElement('span');
		mydiv.setAttribute('style', 'text-align: justify');
		mydiv.innerHTML= allnews;
		var spanElement = document.getElementById('allNews');
		spanElement.appendChild(mydiv);
	}
}
	function requestNewsFromServer()
	{
		
	    var xhr = createXHRRequest();
	  
	    xhr.onreadystatechange  = function()
	    { 
	         if(xhr.readyState  == 4)
	         {
	              if(xhr.status  == 200) 
	              {
		             addNews(xhr.responseText);
	              } 
	              else
	              { 
	              }
	         }
	    }; 

	    xhr.open("GET", "/backend/getDisplayNews", true); 
               
	    xhr.send();
	};