/*
-------------------------------------------------------------------
 Login Script Version 1.9
 By H G Laughland 
 http://www.laughland.biz

This script can be used free of charge and may only be
redistributed the same way. The disclaimer must remain
intact.

DISCLAIMER: Use this script with caution. This script is not 
the most secure method available, for protecting material. Its
main purpose is to demonstrate the javascript techniques used.
The author takes no responsibility for data loss
resulting from the use of this script.
-------------------------------------------------------------------
*/


var successpage = "access01.html"; 
var loginpage = "index.html"; 

var imgSubmit = ""; 
var imgReset = "";  

var users = new Array();

users[0] = new Array("dove1234","Q1234Q","access01.html"); 
users[1] = new Array("dove2345","A2345A","access01.html");          
users[2] = new Array("dove3456","Z3456Z","access01.html");  
users[3] = new Array("dove4567","W4567W","access01.html"); 
users[4] = new Array("dove5678","S5678S","access01.html");          
users[5] = new Array("dove6789","X6789X","access01.html");  

											               
//----------------------------------------------------------------
//  Login Functions
//----------------------------------------------------------------
function login(username,password){
 var member = null;
 var loggedin = 0;
 var members = users.length;
 for(x=0;x<members && !loggedin; x++){
 if((username==users[x][0])&&(password==users[x][1])){
    loggedin = 1;
    member = x;
	break; // User validated, terminate the for loop.
   }
 } 
 
 if(loggedin==1){
  if(users[member][2] != "") {
   successpage = users[member][2];
  }
  setCookie("login",1);
  if (top.location.href != location.href){
   location.href = successpage;           
  }else{
   top.location.href = successpage;  
  }
 }else{
  alert('access denied');
 }  
}

function logout() {
 deleteCookie("login");
 if (top.location.href != location.href){
  location.href = loginpage;           
 }else{
  top.location.href = loginpage;  
 }
}

//----------------------------------------------------------------
// Cookie Handler
//----------------------------------------------------------------
var ckTemp = document.cookie;

function setCookie(name, value) { 
 if (value != null && value != "")
  document.cookie=name + "=" + escape(value) + ";";
 ckTemp = document.cookie;
 }
 
function deleteCookie(name) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function getCookie(name) { 
 var index = ckTemp.indexOf(name + "=");
 if(index == -1) return null;
  index = ckTemp.indexOf("=", index) + 1;
 var endstr = ckTemp.indexOf(";", index);
 if (endstr == -1) endstr = ckTemp.length;
 return unescape(ckTemp.substring(index, endstr));
 }
  
function checkCookie() {
 var temp = getCookie("login");
 if(!temp==1) {
  alert('access denied'); 
  if(top.location.href != location.href){
   location.href = loginpage;           
  }else{
   top.location.href = loginpage;  
  }
 }
}

//----------------------------------------------------------------
// Login Panel
//----------------------------------------------------------------

function BuildPanel() {
document.write('<form name="logon"><table align="left" border="0"><tr><td align="right">');
document.write('<small><font face="Times">Username:</font></small></td>');
document.write('<td><small><font face="Times"><input type="text" name="username" size="15"></font></small></td></tr>');
document.write('<tr><td align="right"><small><font face="Times">Password:</font></small></td>');
document.write('<td><small><font face="Times"><input type="password" name="password" size="15"></font></small></td></tr>');
if(imgSubmit == ""){
 document.write('<tr><td align="center" colspan="2"><p><input type="button" value="Logon" name="Logon" onclick="login(username.value,password.value)">'); 
} else {
 document.write('<tr><td align="center" colspan="2"><p><input type="image" src="'+imgSubmit+'" name="Logon" onclick="login(username.value,password.value)">');
}
if(imgReset == ""){
 document.write('<input type="reset" value="Reset" name="Reset">');
} else {
 document.write('<input type="image" src="'+imgReset+'" name="Reset" onclick="logon.reset();">');
}
document.write('</p></td></tr></table></form>');
}