/*
 * cmdatatagutils.js
 *
 * Coremetrics Tag v3.1, 2/28/2002
 * COPYRIGHT 1999-2002 COREMETRICS, INC. 
 * ALL RIGHTS RESERVED. U.S.PATENT PENDING
 *
 * The following functions aid in the creation of Coremetrics data tags.
 *
 */

// TAG GENERATING FUNCTIONS ---------------------------------------------------

/*
 * Calling this function points tags to the production database
 */
function cmSetProduction(){
	cm_HOST="data.coremetrics.com/eluminate?"; 
}

/*
 * Creates a Tech Props tag.
 * pageID		: required. Page ID to set on this Pageview tag
 */
function cmCreateTechPropsTag(pageID) {
	if (pageID) {
		var cm=new _cm("tid", "6", "vn2", "e3.1");
		cm.pc="Y";
		cm.pi = pageID;
		// if available, override the referrer with the frameset referrer
		if (parent.cm_ref != null) {
			cm.rf = parent.cm_ref;
			parent.cm_ref = document.URL;
		}
		cm.addTP();
		cm.writeImg();
	}
}

/*
 * Creates a Pageview tag with the given Page ID
 *
 * pageID		: required. Page ID to set on this Pageview tag
 * searchString	: optional. Internal search string enterred by user to reach
 *				  this page.
 * categoryID	: optional. Category ID to set on this Pageview tag
 *
 * returns nothing, causes a document.write of an image request for this tag.
 */
function cmCreatePageviewTag(pageID, searchString, categoryID, categoryName, productName, productID, pageName) {
	if (pageID == null) {
		pageID = getDefaultPageID();
	}

	var cm = new _cm("tid", "1", "vn2", "e3.1");
	cm.pi = pageID;
	
	if (searchString) {
		cm.se = searchString;
	}
	if (categoryID) {
		cm.cg = categoryID;
	}
	
	if (categoryName) {
		cm.cl = categoryName;
	}	
	
	if (productName) {
		cm.pm = productName;
	}
	
	if (productID) {
		cm.pr = productID;
	}
	
	if (pageName) {
		cm.pn = pageName;
	}
	
	

	// if available, override the referrer with the frameset referrer
	if (parent.cm_ref != null) {
		cm.rf = parent.cm_ref;
		parent.cm_ref = document.URL;
	}

	cm.writeImg();
}

/*
 * Creates a Pageview tag with the default value for Page ID. 
 * Format of Page ID is "x/y/z/MyPage.asp"
 *
 * returns nothing, causes a document.write of an image request for this tag.
 */
function cmCreateDefaultPageviewTag() {
	cmCreatePageviewTag(getDefaultPageID(), null, null);
}

// HELPER FUNCTIONS -----------------------------------------------------------
/* These functions are used by the tag-generating functions and/or may be used
 * in in general as convenience functions
 */

/*
 * Creates an acceptable default Page ID value to use for Pageview tags.
 * The default Page ID is based on the URL, and consists of the path and
 * filename (without the protocol, domain and query string).
 * 
 * example:
 * returns "x/y/MyPage.asp" for the URL http://www.mysite.com/x/y/MyPage.asp
 */
function getDefaultPageID() { 
	var pageName = window.location.pathname; 

	// eliminates everything after "?" (for Opera browswers)
	var tempIndex1 = pageName.indexOf("?");
	if (tempIndex1 != -1) {
		pageName = pageName.substr(0, tempIndex1);
	}
	// eliminates everything after "#" (for Opera browswers)
	var tempIndex2 = pageName.indexOf("#");
	if (tempIndex2 != -1) {
		pageName = pageName.substr(0, tempIndex2);
	}
	// eliminates everything after ";"
	var tempIndex3 = pageName.indexOf(";");
	if (tempIndex3 != -1) {
		pageName = pageName.substr(0, tempIndex3);
	}

	var slashPos = pageName.lastIndexOf("/");
	if (slashPos == pageName.length - 1) {
		pageName = pageName + "default.aspx"; /****************** SET TO DEFAULT DOC NAME */
	}

	while (pageName.indexOf("/") == 0) {
		pageName = pageName.substr(1,pageName.length);
	}

	return(pageName); 
} 


/*
 * Creates a Productview Tag
 * Also creates a Pageview Tag by setting pc="Y"
 * Format of Page ID is "PRODUCT: <Product Name> (<Product ID>)"
 *
 * productID	: required. Product ID to set on this Productview tag
 * productName	: required. Product Name to set on this Productview tag
 * categoryID	: optional. Category ID to set on this Productview tag 
 *
 * returns nothing, causes a document.write of an image request for this tag.
 */
function cmCreateProductviewTag(productID, productName, categoryID, categoryName) {
	var cm = new _cm("tid", "5", "vn2", "e3.1");

	if (productName == null) {
		productName = "";
	}

	// if available, override the referrer with the frameset referrer
	if (parent.cm_ref != null) {
		cm.rf = parent.cm_ref;
		parent.cm_ref = document.URL;
	}

	cm.pr = productID;
	cm.pm = productName;
	cm.cg = categoryID;
	cm.cl = categoryName;

	cm.pc = "Y";
	cm.pi = "PRODUCT: " + productName + " (" + productID + ")";

	cm.writeImg();
}

/*
 * Creates a Registration tag and/or a Newsletter tag
 *
 * customerID		: required for Registration. ID of Customer to register.
 * customerEmail	: required for Newsletters. Optional for Registration.
 * customerCity		: optional. City of Customer that placed this order
 * customerState	: optional. State of Customer that placed this order
 * customerZIP		: optional. Zipcode of Customer that placed this order
 * newsletterName	: required for Newsletters. The name of the Newsletter.
 * subscribe		: required for Newsletters. Either "Y" or "N"
 *
 * returns nothing, causes a document.write of an image request for this tag.
 */
function cmCreateRegistrationTag(customerID, customerEmail, customerCity,
				customerState, customerZIP, newsletterName, 
				subscribe) {
	var cm = new _cm("tid", "2", "vn2", "e3.1");
	cm.cd = customerID
	cm.em = customerEmail;
	cm.sa = customerState;
	cm.ct = customerCity;
	cm.zp = customerZIP;

	if (newsletterName && subscribe) {
		cm.nl = newsletterName;
		cm.sd = subscribe;
	}
	
	cm.writeImg();
}