var cmReferrer;
function ParseRef (url) {
    var newURL=url;
	if (newURL.toLowerCase().indexOf("cmref=")>0){
		var paramString;
		var params;
		var goodParam;
		var keepParams = new Array();
		
		var paramIndex = newURL.indexOf("?");
	
		if (paramIndex > 0) {
			paramString = newURL.substring(paramIndex+1);
			params = paramString.split("&");

			for(var i=0; i<params.length; i++) {
				if (params[i].toLowerCase().indexOf("cmref")>-1) {
						goodParam = unescape(params[i]);
						if (goodParam.toLowerCase().indexOf("cmref=")>-1){
							goodParam=goodParam.substring(goodParam.toLowerCase().indexOf("cmref=")+7);
						}
				}
			}	
		}
	}
	return goodParam;
}

function cmCreateTechPropsTag(pageID, categoryID) {

	if(pageID == null) {
		pageID = cmGetDefaultPageID();
	}

	var cm=new _cm("tid", "6", "vn2", "e4.0");
	cm.pc="Y";
	cm.pi = pageID;
	cm.cg = categoryID;

	// if available, override the referrer with the frameset referrer
	if (parent.cm_ref != null) {
		cm.rf = parent.cm_ref;
		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; 
		parent.cm_ref = cm.ul;
		parent.cm_set_mmc = false;
	}
	if (!cm.rf){
		cm.rf=ParseRef(document.location.href)
	}
	cm.addTP();
	cm.writeImg();
	
}

function cmCreatePageviewTag(pageID, categoryID, searchString, searchResults) {
	if (pageID == null) {
		pageID = cmGetDefaultPageID();
	}

	var cm = new _cm("tid", "1", "vn2", "e4.0");
	cm.pi = pageID;
	if (searchString) {
		cm.se = searchString;
	}
	cm.sr = searchResults;
	if (categoryID) {
		cm.cg = categoryID;
	}

	// if available, override the referrer with the frameset referrer
	if (parent.cm_ref != null) {
		cm.rf = parent.cm_ref;
		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; 
		parent.cm_ref = cm.ul;
		parent.cm_set_mmc = false;
	}
	if (!cm.rf){
		cm.rf=ParseRef(document.location.href)
	}
	cm.writeImg();
}

function cmCreateProductviewTag(productID, productName, categoryID) {
	var cm = new _cm("tid", "5", "vn2", "e4.0");

	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;
	}

	// 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; 
		parent.cm_ref = cm.ul;
		parent.cm_set_mmc = false;
	}

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

	cm.pc = "Y";
	cm.pi = "LOT: " + productName + " (" + productID + ")";
	if (!cm.rf){
		cm.rf=ParseRef(document.location.href)
	}
	cm.writeImg();
}

function cmCreateErrorTag(pageID, categoryID) {
	var cm=new _cm("tid", "404", "vn2", "e4.0");  //DO NOT CHANGE THESE PARAMETERS
	
	// get the referrer from the frameset
	if (parent.cm_ref != null) {
		cm.rf = parent.cm_ref;
		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; 
		parent.cm_ref = cm.ul;
		parent.cm_set_mmc = false;
	}

	cm.pc = "Y";
	if(pageID == null) {
		cm.pi = cmGetDefaultPageID();
	} else {
		cm.pi = pageID;
	}
	cm.cg = categoryID;
	if (!cm.rf){
		cm.rf=ParseRef(document.location.href)
	}
	cm.writeImg();
}