var DomComp = (document.getElementById) // this will pick up the Dom 1 Compliant browsers such as IE 5 and Netscape 6.
var NS4 = (document.layers)?true:false;
var IE4 = (document.all && !document.getElementById)?true:false;

function _struct(child,childcaption,parent){
this.child = child;
this.childcaption = childcaption;
this.parent	= parent;
}

function _addobject(child,childcaption,parent){
var obj = new _struct();
obj.child = child;
obj.childcaption = childcaption;
obj.parent = parent;
return(obj);
}

function insertEntry(child,childcaption,parent){
	if(child.length > 0 ){		
		for(var i=0;i<this.length;i++)
			if(this.items[i].child == child)
				return;			
		this.items[this.length++] = _addobject(child,childcaption,parent);		
	}
}
function OptionCollection(){
this.length=0;
this.items = new Object();
this.Add=insertEntry
}

function clearSelect(oSelect){
var iCount=0;
if(!oSelect) return;
iCount = oSelect.options.length;
for(var i=0;i<iCount;i++){
	if(IE4) oSelect.options.remove(0);
	else if(NS4) oSelect.options[0]=null;
	else if(DomComp) oSelect.remove(0);
}
}

function addOptions(oSelect,olist,parent){
	var elOption;
	var idxSelect=0;	
	//check arguments.
	if((!olist) || (!oSelect)) return;		
	if(parent.length <=	0) 	return;
	//now looop through all the list items only entering relevant options.
	clearSelect(oSelect);	
	//add a blank list
	elBlankOption = new Option();
	elBlankOption.text = "";
	if(NS4) oSelect.options[0] = elBlankOption
	else if(IE4) oSelect.options.add(elBlankOption,0)
	elBlankOption.value = "";
	
	for(var i=0;i<olist.length;i++){		
		//only the child entries of the parent				
		if(olist.items[i].parent == parent){	
			elOption = new Option();
			//now IE and NS4 and NS6 have a different way to handle object creation.
			if(NS4){						
				elOption.value = olist.items[i].child
				elOption.text = olist.items[i].childcaption
				oSelect.options[idxSelect] = elOption				
			}else if(IE4){				
				elOption.value = olist.items[i].child
				elOption.text = olist.items[i].childcaption
				oSelect.options.add(elOption,idxSelect)					
			}else if(DomComp){
				elOption.value = olist.items[i].child
                elOption.text = olist.items[i].childcaption
                oSelect.options[oSelect.options.length]= elOption;  
			}					
			idxSelect++;
			//delete(elOption);
		}			
	}	
}

function UpdateSelect(szSelect,szForm,szParent,olist){
	if(IE4){addOptions(szSelect,olist,szParent);}
	else if(NS4) {addOptions(szSelect,olist,szParent);}
	else if(DomComp){addOptions(szSelect,olist,szParent);}
}

function ReloadDropDown(frm,iLocation) {
	frm.cmbCountry.onchange();

	if (iLocation != ""){
		for(i=0;i<frm.cmbLocation.options.length;i++) {
			if(frm.cmbLocation.options[i].value == iLocation)  {
				frm.cmbLocation.selectedIndex=i;
			}
		}
	}
}

function selectOption(oSelect,value)
{
    var selected = false;
    for (i=0;i<oSelect.options.length;i++)
    {
        if (oSelect.options[i].value==value)
        {
            oSelect.options[i].selected= true;
            selected = true;    
        }
        else
            oSelect.options[i].selected = false;
    }
    if (!selected)
        oSelect.options[0].selected = true;
}//selectOption

// Travel - City Change
var oLocations = new OptionCollection();
oLocations.Add("allLocations","Select a Location","select_location");
	// Vietnam
	oLocations.Add("21_all","All","21");
	oLocations.Add("67","Hanoi & North Vietnam","21");
	oLocations.Add("69","Ho Chi Minh & South Vietnam","21");
	oLocations.Add("68","Hue - Hoi An & Center","21");
	oLocations.Add("70","Vietnam Beaches","21");
	oLocations.Add("71","Vietnam Other","21");
	// Thailand
	oLocations.Add("20_all","All","20");
	oLocations.Add("63","Bangkok","20");
	oLocations.Add("61","Chiang Mai","20");
	oLocations.Add("138","Chiang Rai & Golden Triangle","20");
	oLocations.Add("62","Isaan","20");
	oLocations.Add("64","South Thailand","20");
	oLocations.Add("139","Sukhothai & Central Thailand","20");
	oLocations.Add("65","Thailand Beaches","20");
	oLocations.Add("66","Thailand Other","20");
	// Cambodia
	oLocations.Add("30_all","All","30");
	oLocations.Add("45","Angkor","30");
	oLocations.Add("49","Cambodia Beaches","30");
	oLocations.Add("50","Cambodia Other","30");
	oLocations.Add("134","Phnom Penh","30");
	oLocations.Add("48","South Cambodia","30");
	// Myanmar
	oLocations.Add("23_all","All","23");
	oLocations.Add("132","Bagan","23");
	oLocations.Add("58","Inle Lake","23");
	oLocations.Add("88","Mandalay","23");
	oLocations.Add("60","Myanmar Other","23");
	oLocations.Add("130","Yangon","23");
	// Laos
	oLocations.Add("18_all","All","18");
	oLocations.Add("52","North Laos","18");
	oLocations.Add("55","Laos Other","18");
	oLocations.Add("51","Luang Prabang","18");
	oLocations.Add("54","South Laos","18");
	oLocations.Add("133","Vientiane","18");
	// Multi-Country
	oLocations.Add("72_all","All","72");

// Day Trips - City Change
var oLocation = new OptionCollection();
	oLocation.Add("allLocations","Select a Location","select_location");
	// Vietnam
	oLocation.Add("21_all","All","21");
	oLocation.Add("136","Danang","21");
	oLocation.Add("78","Hanoi","21");
	oLocation.Add("79","Ho Chi Minh City","21");
	oLocation.Add("80","Hoi An","21");
	oLocation.Add("81","Hue","21");
	// Thailand
	oLocation.Add("20_all","All","20");
	oLocation.Add("22","Bangkok","20");
	oLocation.Add("74","Chiang Mai","20");
	oLocation.Add("93","Phuket","20");
	// Cambodia
	oLocation.Add("30_all","All","30");
	oLocation.Add("47","Phnom Penh","30");
	oLocation.Add("95","Siem Reap","30");
	// Laos
	oLocation.Add("18_all","All","18");
	oLocation.Add("122","Luang Prabang","18");
	oLocation.Add("145","Pakse & The South","18");
	oLocation.Add("53","Vientiane","18");
	// Myanmar
	oLocation.Add("23_all","All","23");
	oLocation.Add("56","Bagan","23");
	oLocation.Add("128","Inle","23");
	oLocation.Add("57","Mandalay","23");
	oLocation.Add("24","Yangon","23");
	// Multi-Country
	oLocation.Add("72_all","All","72");
	
// Show hide tab
function show(id){ //display an html element
	element = document.getElementById(id);
	if(element!=null) element.style.display = 'block';
}

function hide(id){ //hide an html element
	element = document.getElementById(id);
	if(element!=null) element.style.display = 'none';
}

function getElementsByClassDustin(searchClass,node,tag) {
    var classElements = new Array();
    if ( node == null )
            node = document;
    if ( tag == null )
            tag = '*';
    var els = node.getElementsByTagName(tag);
    var elsLen = els.length;
    var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
    for (i = 0, j = 0; i < elsLen; i++) {
            if ( pattern.test(els[i].className) ) {
                    classElements[j] = els[i];
                    j++;
            }
    }
    return classElements;
}

function getElementsByClass(searchClass,node,tag) { 
	//if is Netscape we use the native procedure
	if (navigator.appName=="Netscape") return document.getElementsByClassName(searchClass);
	else return getElementsByClassDustin(searchClass,node,tag);
}

function ShowTab(id){
	//hidding the boxes
	var eBox = getElementsByClass("box",document.getElementById('box_container'),"div");//all the boxes
	for (i in eBox) hide(eBox[i].id);
	//show the box
	show('box'+id);

	//change tab class
	var eTab = getElementsByClass("tab_selected",document.getElementById('tab_container'),"span");//all the tabs
	for (i in eTab) eTab[i].className ='tab';
	//set on the tab
	document.getElementById('tab'+id).className ='tab_selected';
}

function ShowKey(){
	document.getElementById('by1').style.display = 'block';
	document.getElementById('by2').style.display = 'none';
}

function ShowTravel(){
	document.getElementById('by1').style.display = 'none';
	document.getElementById('by2').style.display = 'block';
}

// Search by Tour
function SearchTours()
{
	var url = 'http://www.exotissimo.com/Travel/';
	city = document.getElementById('cmbLocation').value;
	if (city.indexOf('_') > 0) {
		city = '%';
	}
	
	if(document.getElementById('lengthTours').value != '%'){
		url += 'sort-lengthofstay-' + document.getElementById('lengthTours').value + '/';
	}
	url += '?search=%&type=1';
	url += '&country=' + document.getElementById('cmbCountry').value;
	url += '&destination=' + city;
	url += '&city=';
	url += '&travelStyle=' + document.getElementById('activityTours').value;
	url += '&hotelPreference=';
	url += '&length=' + document.getElementById('lengthTours').value;
	url =  'http://www.tqlkg.com/click-3538937-10720267?SID=optional&url=' + escape(url);
	window.open(url);
}

// Search by Day Trips
function SearchDaytrips()
{
	var url = 'http://www.exotissimo.com/Travel/?search=%';
	city = document.getElementById('cmbLocation1').value;
	if (city.indexOf('_') > 0) {
		city = '%';
	}
	url += '&type=3';
	url += '&country=' + document.getElementById("countryDaytrips").value;
	url += '&destination=';
	url += '&city=' + city;
	url += '&travelStyle=' + document.getElementById("activityDaytrips").value;
	url += '&hotelPreference=';
	url += '&length=';
	url =  'http://www.tqlkg.com/click-3538937-10720267?SID=optional&url=' + escape(url);
	window.open(url);
}