/*
 * Baynote Observer for www.priceline.com
 * Last updated: 7/1/2009
 */
function bn_isNotEmpty(name) {
	return (name != null) && (name != "");
}
function bn_getOrderInfo() {
	if (typeof(bnOrderId) != "undefined" && bn_isNotEmpty(bnOrderId)) {
		baynote_tag.attrs.purchaseId = bnOrderId;
		if (typeof(bnOrderTotal) != "undefined" && bn_isNotEmpty(bnOrderTotal)) {
			baynote_tag.attrs.totalPurchases = parseFloat(bnOrderTotal);
			baynote_tag.specialTarget = true;
		}
		if (typeof(bnOrderDetails) != "undefined" && bn_isNotEmpty(bnOrderDetails)) {
			baynote_tag.attrs.purchaseDetails = bnOrderDetails;
		}
		if (typeof(bnOrderType) != "undefined" && bn_isNotEmpty(bnOrderType)) {
			baynote_tag.attrs.purchaseType = bnOrderType;
		}
	}
}
function bn_showObserver() {
	bn_customerId = "priceline";
	bn_code = "www";
	var bn_locHref = window.location.href;
	if (bn_locHref.indexOf("https://") == 0) {
		baynote_tag.server = "https://" + bn_customerId + "-" + bn_code + ".baynote.net";
	} else {
		baynote_tag.server = "http://" + bn_customerId + "-" + bn_code + ".baynote.net";
	}
	baynote_tag.customerId = bn_customerId;
	baynote_tag.code = bn_code;
	baynote_tag.type = "baynoteObserver";
	if (bn_locHref.indexOf(".priceline.com") > 0) {
	    baynote_globals.cookieDomain = "priceline.com";
	}
	bn_getOrderInfo();
	if (bn_locHref.indexOf("/hotel/hotelOverviewGuide.do") > 0) {
	    baynote_tag.docAttrs.propname = bn_getPropertyName();
	    baynote_tag.docAttrs.city = bn_getCity();
	    baynote_tag.docAttrs.state = bn_getState();
	    baynote_tag.docAttrs.score = bn_getScore();
	    baynote_tag.docAttrs.price = bn_getPrice();
	    baynote_tag.docAttrs.propid = bn_getPropID();
	}
	baynote_tag.show();
}

function bn_getCity() {
	var address;
	var city;
	
	address = getElementsByClassName("address")[0].lastChild.nodeValue;

	var re1 = '.*?';
	var re2 = '([A-Za-z0-9 ]+),';
	
	var p = new RegExp(re1+re2);
	var m = p.exec(address);
	
	if (m != null) {
		city = m[1];
	}
	
	return city;
}

function bn_getState() {
	var address;
	var state
	
	address = getElementsByClassName("address", "div")[0].lastChild.nodeValue;

	var re1 = '.*?';
	var re2 = '([A-Z]{2})';
	
	var p = new RegExp(re1+re2);
	var m = p.exec(address);
	
	if (m != null) {
		state = m[1];
	}
	
	return state;
}

function bn_getPropertyName() {
	var property = getElementsByClassName("htname", "h1")[0].innerHTML;
	
	return property;
}

function bn_getPrice() {
	var price = getElementsByClassName("ht_pricebox_price", "div")[0].innerHTML.replace(/\$/,"");
	
	return price;
}

function bn_getScore() {
	var score = getElementsByClassName("score_number", "div")[0].innerHTML;
	
	return score;
}

function bn_getPropID() {
	var links = document.getElementsByTagName("a");
	
	for (var i = 0; i < links.length; i++) {
		var href = links[i].href;
		var propID;
		
		if(href.search("propID=") > 0) {
			var re1 = '.*';
			var re2 = 'propID=([0-9]+)&.*';
	
			var p = new RegExp(re1+re2);
			var m = p.exec(href);
	
			if (m != null) {
				propID = m[1];
			}
			
			break;
		}
	}
	
	return propID;
}

/*
	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);
};

if (typeof(baynote_tag)!="undefined") {
	bn_showObserver();
}