// wrapper for getElementById
function $(id) {
	return document.getElementById(id);	
}

// initilisation function called onload
function init() {
}

// onfocus for search box in nav
function search_focus() {
	var q = $('q');
	if (q.value == 'Search...') {
		q.value = '';
		q.style.fontStyle = 'normal';
		q.style.color = '#000000';
	}
}
// onblur for search box in nav
function search_blur() {
	var q = $('q');
	if (q.value == '') {
		q.value = 'Search...';	
		q.style.fontStyle = 'italic';
		q.style.color = '#999999';
	}
}
// submit for search
function search_submit() {
	var q = $('q');
	if (q.value != '' && q.value != 'Search...') {
		return true;
	}
	return false;
}

/* Navigation Expand/Collapse System */

function nav_toggle_action(id) {
	if ($('nav-'+id).style.display == 'none') {
		$('nav-'+id).style.display = 'block';
		$('link-'+id).style.backgroundImage = 'url(/images/collapse.gif)';
	} else {
		$('nav-'+id).style.display = 'none';
		$('link-'+id).style.backgroundImage = 'url(/images/expand.gif)';
	}
}
function nav_expand_start() {

}
function nav_expand_finish(id) {
	$('nav-basic').innerHTML = '';
	$('nav-basic').style.display = 'none';
	$('nav-full').style.display = 'block';
	nav_toggle_action(id);
}
function nav_toggle(id) {
	
	var download = new Array('australia', 'pacific', 'europe', 'asia');
	
	c = 0;
	for (i = 0; i < download.length; i++) {
		if (id == download[i]) {
			c++;	
		}
	}
	
	if (c > 0) {
		if ($('nav-basic').innerHTML) {
			var page = '/destinations.php';
			var request = '';
			var type = 'div';
			var el = 'nav-full';
			var status_start = 'nav_expand_start()';
			var status_finish = 'nav_expand_finish(\''+id+'\')';
			ajax(page, request, type, el, status_start, status_finish);
		} else {
			nav_toggle_action(id);
		}
	} else {
		nav_toggle_action(id);
	}
}

function compare_thumb_quote(supplier_codes) {
	supplier_code_array = supplier_codes.split(',');
	if (supplier_code_array.length == 1) {
		window.open('http://dm.travelonline.com/w/wizard.php?supplier_code='+supplier_code_array[0],'qw1','WIDTH=800,HEIGHT=530,scrollbars=1');
	} else {
		window.open('http://dm.travelonline.com/w/l/branch.php?supplier_code='+supplier_codes+'&action=quote','qw1','WIDTH=800,HEIGHT=530,scrollbars=1');
	}
	pageTracker._trackPageview('/rates/open/quote/popup-quote/'+supplier_codes);
}


function compare_thumb_toggle(el) {
	if (el.nextSibling.childNodes.length > 0) {
		next = el.nextSibling;
	} else {
		next = el.nextSibling.nextSibling;
	}
	if (next.style.display == '') { next.style.display = 'none'; }
	if (next.style.display != '') {
		elements = getElementsByClassName('compare_thumb_details', 'tr');
		for (i = 0; i < elements.length; i++) {
			elements[i].style.display = 'none';
		}
		elements = getElementsByClassName('compare_thumb', 'tr');
		for (i = 0; i < elements.length; i++) {
			elements[i].style.background = '';
		}
		next.style.display = '';
		el.style.background = '#FFF793';//'#FEF286';//#FFFFAA';//'#FDD22E';
	}
}


/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/
var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};