/*

 * cmcustom.js 

 * $Id: cmcustom -MASTER.txt 153586 2010-08-11 17:33:28Z croberts $

 * $Revision: 153586 $

 *

 * Version 4.1.0

 *

 * Coremetrics Tag v4.0, 8/7/2006

 * COPYRIGHT 1999-2002 COREMETRICS, INC. 

 * ALL RIGHTS RESERVED. U.S.PATENT PENDING

 *

 * The following functions aid in the creation of Coremetrics data tags.

 *

 */



//setting cmUserAgentString so we can check for additional agent.

var cmUserAgentString = "0";



if (navigator.userAgent.toUpperCase().indexOf("AlertSite") >=0 ){

    cmUserAgentString = "1";

	// Uncomment the alert below to test the case.

	// alert("the case was met!");

}



function cmMakeTag(__v) {

	var cm = new _cm("vn2", "e4.0");

	var i;

	for (i = 0; i < __v.length; i += 2) {

		var _n = __v[i];

		var _v = __v[i + 1];

		cm[_n] = _v;

	}

	

	// add a random number for cache-busting

	var datestamp = new Date();	

	var stamp = (Math.floor(Math.random() * 11111111)) + datestamp.valueOf();	

	cm.rnd = stamp;

	

	// if this is a TechProps tag, call addTP

	if (cm.tid == "6") {

		cm.addTP();

		//UPDATE: use cmSetCookie function instead

		document.cookie = "cmTPSet=Y; path=/";

	}



	// if this is the first pageview in the session, convert it to a TechProps tag

	if (cm.tid == "1") {

		if (cI("cmTPSet") != 'Y') {

			cm.tid = "6";

			cm.pc = "Y";

			cm.addTP();

			//UPDATE: use cmSetCookie function instead

			document.cookie = "cmTPSet=Y; path=/";

		}

	}



	// for backwards compatibility with clients using cmCustom libraries and the old cm_exAttr variable.

	if (cm.cm_exAttr) {

		cm.cmAttributes = cm.cm_exAttr.join("-_-");

		cm.cm_exAttr = null;

	}



	// process attribute and extrafield strings into correct tag parameters

	var cmAttributesMap = {"1": "pv_a","2":"rg","3":"o_a","4":"s_a","5":"pr_a","6":"pv_a","14":"c_a","15":"e_a"};

	var cmExtraFieldsMap = {"1": "pv","2":"rg","3":"or","4":"sx","5":"pr","6":"pv","7":"ps","14":"cx"};

	if (cm.cmAttributes) {

		var tempArray = cm.cmAttributes.split("-_-");

		var name = cmAttributesMap[cm.tid];

		for (i=0;i<tempArray.length;++i){

			cm[name + (i + 1)] = tempArray[i];

		}

		cm.cmAttributes = null;

	}

	if (cm.cmExtraFields) {

		var tempArray = cm.cmExtraFields.split("-_-");

		var name = cmExtraFieldsMap[cm.tid];

		for (i=0;i<tempArray.length;++i){

			cm[name + (i + 1)] = tempArray[i];

		}

		cm.cmExtraFields = null;

	}



	if (cmAutoCopyAttributesToExtraFields) {

		if ((cm.tid != '2') && (cm.tid != '15')) {

		    for (var i = 1; i <= 15; ++i) {

				if (!(cm[cmExtraFieldsMap[cm.tid] + "" + i])) {

					cm[cmExtraFieldsMap[cm.tid] + "" + i] = cm[cmAttributesMap[cm.tid] + "" + i];

				}

		    }

		}

	}

	

	// make sure we have a pageID value for pageview or tags that count as pageview

	if ((cm.pi == null) && ((cm.pc == "Y") || (cm.tid == "1"))) {

		cm.pi = cmGetDefaultPageID();

	}



	// try to get referrer from parent frameset

	try{

		if (parent.cm_ref != null) {

			cm.rf = parent.cm_ref;

			if (cm.pc == "Y") {

				parent.cm_ref = document.URL;

			}

		}

	

		// if parent had mmc variables and this is the first pageview, add mmc to this url

		if(parent.cm_set_mmc) {

			cm.ul = document.location.href + 

					((document.location.href.indexOf("?") < 0) ? "?" : "&") + 

					parent.cm_mmc_params; 

			if (cm.pc == "Y") {

				parent.cm_ref = cm.ul;

				parent.cm_set_mmc = false;

			}

		}

	}

	catch(err){

		// most likely failed due to browser security restrictions, so do nothing

	}



	// Set the destination and referring URL parameters if not already set

	if (cm.ul == null) {

		cm.ul = cG7.normalizeURL(window.location.href, false);

	}

	if (cm.rf == null) {

		cm.rf = cG7.normalizeURL(document.referrer, false);

	}



	// convert MMC parameters to lowercase

	cm.ul = cm.ul.replace(cmMMCPattern,function(p){return p.toLowerCase();});

	cm.rf = cm.rf.replace(cmMMCPattern,function(p){return p.toLowerCase();});



	//check for manual_cm_mmc parameter and attach to URL if mmc parameter not already in URL

	if ((this.manual_cm_mmc) && (cm.ul.indexOf("cm_mmc") == -1) && (cm.ul.indexOf("cm_ven") == -1)) {

		cm.ul = cm.ul + ((cm.ul.indexOf("&") == -1) ? ((cm.ul.indexOf("?") == -1) ? "?" : "&") : "&") + "cm_mmc=" + this.manual_cm_mmc;

	}



	// check for cm_em or cm_lm parameter and add registration tag to tagset if necessary

	if (cmCheckCMEMFlag){

		cmStartTagSet();

	}

	if (cmUserAgentString == "0")

	{

		cm.writeImg();

	}

	if (cmCheckCMEMFlag) {

		cmCheckCMEMFlag = false;	

		cmCheckCMEM();

		cmSendTagSet();		

	}



	// call IO function if IO enabled

	if (typeof cm_ted_io == 'function') {

		if(cm_IOEnabled) {

			cm_ted_io(cm);

		}

	}

}