loadtabs = 0;

function dealTabSwitch(tab,tablink,tabnum) {

 var tabs = new Array("dealtab0","dealtab1","dealtab2","dealtab3");
 var tablinks = new Array("deallink0","deallink1","deallink2","deallink3");
 
 var listitems = document.getElementById("dealtabsul").getElementsByTagName("li");
 
 if(listitems.length > 0) {
 
  document.getElementById(tab).style.display="block";
  listitems[tabnum].id = "active";
  
  for(var i = 0; i < listitems.length; i=i+1) {
  
   if(tabs[i] != tab) {
   
    listitems[i].id = "inactive";
    document.getElementById(tabs[i]).style.display="none";
   
   }
  
  }
  
 }
 
 /*
 for(var i = 0; i < tabs.length; i++) {
 
  if(tabs[i] != tab) {
  
   document.getElementById(tabs[i]).style.display="none";
   document.getElementById(tablinks[i]).style.fontWeight="normal";
  
  }
 
 }
 */

}

function dealtabOne() {
 dealTabSwitch("dealtab0", "deallink0", 0);
 return false;
}
function dealtabTwo() {
 dealTabSwitch("dealtab1", "deallink1", 1);
 return false;
}
function dealtabThree() {
 dealTabSwitch("dealtab2", "deallink2", 2);
 return false;
}
function dealtabFour() {
 dealTabSwitch("dealtab3", "deallink3", 3);
 return false;
}

function loadDealTabs() {

 document.getElementById("deallink0").onclick = dealtabOne;
 document.getElementById("deallink1").onclick = dealtabTwo;
 document.getElementById("deallink2").onclick = dealtabThree;
 document.getElementById("deallink3").onclick = dealtabFour;

}


function infantsNotify() {
  obj= document.getElementById('searchform');  
  if(obj.i[obj.i.selectedIndex].value > obj.a[obj.a.selectedIndex].value) {
   alert("The number of infants cannot exceed the total number of adults in the party. This is due to infants travelling on adults laps during the flight.");
   document.searchform.i.value = document.searchform.a.value;
  }
}


function validateForm() {

 var myForm = document.searchform;
 var errors = "\n";
 var error = 0;

 if(myForm.w.value == '|') {
  document.getElementById("destination").innerHTML = "* X";
  error = error+1;
 }
 else {
  document.getElementById("destination").innerHTML = "*";
 }

 if(myForm.n.value == '|') {
  document.getElementById("duration").innerHTML = "* X";
  error = error+1;
 }
 else {
  document.getElementById("duration").innerHTML = "*";
 }
 
 if(document.getElementById("f1").value == '|') {
  document.getElementById("f1error").innerHTML = "* X";
  error = error+1;
 }
 else {
  document.getElementById("f1error").innerHTML = "*";
 }
 
 if(error > 0) {
  return false;
 }
 else {
  document.getElementById("searchform").action = "/searchflights.php";
 }
}

var yearChanged = false;
function correctYear() {
 var d = new Date();
 var smDay = d.getDate() + 1;
 var smMonth = d.getMonth() + 1;
 var smMonthPast = d.getMonth();
 var smYear = d.getFullYear();
 if(document.getElementById("month").value < smMonth && document.getElementById("year").value == smYear && yearChanged == false) {
  document.getElementById("year").selectedIndex = document.getElementById("year").selectedIndex + 1;
  yearChanged = true;
 }
 if(document.getElementById("day").value < smDay && document.getElementById("month").value == smMonthPast && document.getElementById("year").value == smYear) {
  document.getElementById("year").selectedIndex = document.getElementById("year").selectedIndex + 1;
  yearChanged = true;
 }
}

function checkYear() {
 var d = new Date();
 var smYear = d.getFullYear();
 if(document.getElementById("year").value == smYear) {
  yearChanged = false;
 }
}

function dealsByEmailSubscribe(divId, email) {

 xmlhttpsm = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
 xmlhttpsm.open('get', './data/email/emailreg.php?e=' + email);
 
 xmlhttpsm.onreadystatechange = function() {
  if((xmlhttpsm.readyState==4) && (xmlhttpsm.status ==200)) {
   if(xmlhttpsm.responseText == "added") {
    document.getElementById(divId).style.paddingTop = "24px";
    document.getElementById(divId).innerHTML = "E-mail address, " + email + ", was added to the Deals By Email mailing list successfully.";
   }
   else {
    alert("The e-mail address you entered was rejected by our system. Please try again.");
   }
  }
 }
 
 xmlhttpsm.send(null);

}

function ow(url,wname) {
 window.open(url, wname, 'directories=no,height=780,width=760,location=no,menubar=no,resizable=yes,scrollbars=yes,status=no,titlebar=yes,toolbar=no');
 return false;
}

searchtoggle = "notset";

function toggleSearch() {

 if(searchtoggle == "set") {
 
  document.getElementById("searchtoggle").style.display="block";
  document.getElementById("searchoptions").style.display="none";
  document.getElementById("toggleimage").src = "/images/showoptions.gif";
  searchtoggle = "notset";
 
 }
 else {
 
  document.getElementById("searchtoggle").style.display="block";
  document.getElementById("searchoptions").style.display="block"; 
  document.getElementById("toggleimage").src = "/images/hideoptions.gif";
  searchtoggle = "set";
 
 }

}