// JavaScript Document
function emailCheck(emailStr) {
	/* The following pattern is used to check if the entered e-mail address
	   fits the user@domain format.  It also is used to separate the username
	   from the domain. */
	var emailPat=/^(.+)@(.+)$/
	/* The following string represents the pattern for matching all special
	   characters.  We don't want to allow special characters in the address. 
	   These characters include ( ) < > @ , ; : \ " . [ ]    */
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	/* The following string represents the range of characters allowed in a 
	   username or domainname.  It really states which chars aren't allowed. */
	var validChars="\[^\\s" + specialChars + "\]"
	/* The following pattern applies if the "user" is a quoted string (in
	   which case, there are no rules about which characters are allowed
	   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
	   is a legal e-mail address. */
	var quotedUser="(\"[^\"]*\")"
	/* The following pattern applies for domains that are IP addresses,
	   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
	   e-mail address. NOTE: The square brackets are required. */
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	/* The following string represents an atom (basically a series of
	   non-special characters.) */
	var atom=validChars + '+'
	/* The following string represents one word in the typical username.
	   For example, in john.doe@somewhere.com, john and doe are words.
	   Basically, a word is either an atom or quoted string. */
	var word="(" + atom + "|" + quotedUser + ")"
	// The following pattern describes the structure of the user
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	/* The following pattern describes the structure of a normal symbolic
	   domain, as opposed to ipDomainPat, shown above. */
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	
	
	/* Finally, let's start trying to figure out if the supplied address is
	   valid. */
	
	/* Begin with the coarse pattern to simply break up user@domain into
	   different pieces that are easy to analyze. */
	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
	  /* Too many/few @'s or something; basically, this address doesn't
	     even fit the general mould of a valid e-mail address. */
		//alert("Email address seems incorrect (check @ and .'s)")
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]
	
	// See if "user" is valid 
	if (user.match(userPat)==null) {
	    // user is not valid
	   // alert("The username doesn't seem to be valid.")
	    return false
	}
	
	/* if the e-mail address is at an IP address (as opposed to a symbolic
	   host name) make sure the IP address is valid. */
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
	    // this is an IP address
		  for (var i=1;i<=4;i++) {
		    if (IPArray[i]>255) {
		      //  alert("Destination IP address is invalid!")
			return false
		    }
	    }
	    return true
	}
	
	// Domain is symbolic name
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		//alert("The Domain Name doesn't seem to be valid.")
	    return false
	}
	
	/* domain name seems valid, but now make sure that it ends in a
	   three-letter word (like com, edu, gov) or a two-letter word,
	   representing country (uk, nl), and that there's a hostname preceding 
	   the domain or country. */
	
	/* Now we need to break up the domain to get a count of how many atoms
	   it consists of. */
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
	    domArr[domArr.length-1].length>4) {
	   // the address must end in a two letter or three letter word.
	  // alert("The address must end in a three-letter domain, or two letter country.")
	   return false
	}
	
	// Make sure there's a host name preceding the domain.
	if (len<2) {
	   var errStr="This E-mail address is missing a hostname!"
	  // alert(errStr)
	   return false
	   }
	   // If we've gotten this far, everything's valid!
	return true	   
}


function getInnerText(data)
{
	 return (data.textContent || data.innerText || data.text || data.firstChild.dataValue) ;
}

//function for displaying errors
function show_error(msg)
{
		var content=document.getElementById("message");
		content.innerHTML=msg;
		content.className="message_error";
		content.style.display="bk";
}

//function to check any items selected
function isSelected()
		{
			var boxes = getElementsByClass("choose");
			var display=false;
			for (i = 0; i < boxes.length; i++){
				if (boxes[i].checked == true){
					 display=true;
					 break;
				}//ends IF
			}//ends FOR
			
			return display;
		}

//function for get elements based on class
function getElementsByClass( searchClass, domdata, tagName) {
		if (domdata == null) domdata = document;
		if (tagName == null) tagName = '*';
		var el = new Array();
		var tags = domdata.getElementsByTagName(tagName);
		var tcl = " "+searchClass+" ";
		for(i=0,j=0; i<tags.length; i++) {
			var test = " " + tags[i].className + " ";
			if (test.indexOf(tcl) != -1)
				el[j++] = tags[i];
		}
		return el;
		}
		

//global variable declaration
var curTab = 0;
var isdots = "";

function changecolor(){
	
	document.getElementById('nemail').style.color = "black";
	document.getElementById('nemail').value       = "";
}

function submitingdetails(){

	var flag = true;
	

	if((document.nform.nemail.value == "") || (document.nform.nemail.value == "Enter email")){

			document.getElementById('nemail').style.color = "red";
			document.nform.nemail.value   = "Enter email";
			flag   = false;

	}else{

	if((!emailCheck(document.nform.nemail.value)) ||(document.nform.nemail.value == "Enter valid email")){

			document.getElementById('nemail').style.color = "red";
			document.nform.nemail.value   = "Enter valid email";
			flag   = false;
			
	}

	}
	
	
	if(flag  == true){	
	 
	  settrackemail(document.nform.nemail.value);
	 
	}else{
	return false;	
	}	


}

//function to display ation based on district starts
function settrackemail(nemail)
{	
	var url="trackmail.php?nemail="+nemail;	
	process(url,settrackemail2);	
}

function settrackemail2(){

	var data	=	handleResponse("text");
	
    if(data	 ==	"OK")
	{		
	    document.getElementById('nemail').value               = ""; 		
        document.getElementById('newsletter1').style.display  = "none"; 		
	    document.getElementById('newsletter2').style.display	  = ""; 					
		setTimeout("movetorealstage()",3000);
	}

    if(data	 ==	"NOK")
	{		
	   document.getElementById('nemail').value               = ""; 	
       document.getElementById('newsletter2').style.display  = "none"; 	
	   document.getElementById('newsletter1').style.display  = "none"
	   document.getElementById('newsletter3').style.display	  = ""; 	
	   setTimeout("movetorealstage()",3000);
	}

	return false;
	
}

function movetorealstage(){
	    document.getElementById('nemail').value               = ""; 	 
	    document.getElementById('newsletter1').style.display  = ""; 		
	    document.getElementById('newsletter2').style.display	  = "none"; 
		document.getElementById('newsletter3').style.display	  = "none"; 

}