var req="",url="",jsonData="";
var loadingImg = '<img src=./images/ajax-loader.gif height=15px width=200px />';

function subscribeToNewsletter()
{
    var objEmailId = document.getElementById("txtEmailId");
    if(objEmailId.value == "")
     {  alert('Please Enter EmailId!'); objEmailId.focus(); return false; }
     else if(objEmailId.value != "")
     { 
        if (!checkMail(objEmailId.value)) 
         {   alert('Incorrect Email Address!');objEmailId.focus();return false;
         }
     }
     
     url = "/SubscribeToNewsletter?txtEmailId="+objEmailId.value;
     
     if(window.XMLHttpRequest){ req = new XMLHttpRequest(); }
     else if(window.ActiveXObject){ req = new ActiveXObject("Microsoft.XMLHTTP"); }
     
     req.open("POST",url,true);
     req.onreadystatechange = callbackSubscribeNewsletter;
     
     if(window.ActiveXObject) req.send(null);
     else if(window.XMLHttpRequest) req.send(url.length);
}                        

function callbackSubscribeNewsletter()
{
    var objInfoMsg = document.getElementById("infoMessage");
    objInfoMsg.style.display = 'inline';
    
    if(req.readyState == 0){
        objInfoMsg.innerHTML = loadingImg;
    }else if(req.readyState == 1){
        objInfoMsg.innerHTML = loadingImg;
    }else if(req.readyState == 2){
        objInfoMsg.innerHTML = loadingImg;
    }else if(req.readyState == 3){
        objInfoMsg.innerHTML = loadingImg;
    }
    if(req.readyState == 4){
        if(req.status == 200){
            jsonData = req.responseText;
            objInfoMsg.innerHTML = '<font class=messageFont>'+jsonData+'</font>';
        }
    }
}


//validation for email id 
function checkMail(email)
{
   var x = email;
   var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
   if (filter.test(x))
   {
      return true;
   }
   else
   {
      return false;
   }
}

function play(media)
{ 
	if(media=='home'){
   	media='file=Freevideos/e-nalanda.flv&autostart=true&streamer=rtmp://e-nalanda.com/oflaDemo';
   }else if(media=='Freescale'){
   	media='file=Freevideos/Freescale.flv&autostart=true&streamer=rtmp://e-nalanda.com/oflaDemo';
   }else if(media=='WinCE'){
   	media='file=Freevideos/Wince.flv&autostart=true&streamer=rtmp://e-nalanda.com/oflaDemo';
   }else if(media=='RTOS'){
   	media='file=Freevideos/rtos.flv&autostart=true&streamer=rtmp://e-nalanda.com/oflaDemo';
   }
   var s1 = new SWFObject("player.swf","ply","472","347","9","#FFFFFF");
   s1.addParam("allowfullscreen","false");   
   s1.addParam("allowscriptaccess","always");		
   s1.addParam("bufferlength","50");
   s1.addParam('flashvars',media);
   s1.write("mediaplayer");

  /* document.getElementById('mediaplayer').innerHTML='<object classid="clsid:22d6f312-b0f6-11d0-94ab-0080c74c7e95"'
   +'type="application/x-oleobject" width="472px" height="347px">'
   +'<param name="showControls" value="0">'
   +'<param name="autoStart" value="true">'
   +'<param name="enableContextMenu" value="false">'
   +'<param name="fullScreen" value="false">'
   +'<param name="fileName" value="'+media+'">'
   +'<embed type="application/x-mplayer2" width="472px" height="347px"'
   +'showcontrols="0" autoStart="true" fullScreen="false" src="'+media+'"></embed></object>';
   
   setTimeout(" detectClientBrowser()",4000);  */
}

/**@avdhoot
  *validate mail id & subscribe user to newsletter
  */
function handleEnterHome()
{ 
   if(event.keyCode == 13)
      {subscribeToNewsletter();}
}