//<![CDATA[
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = String(ca[i]);
		while (c.charAt(0) == ' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return "";
}

function left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}

function right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

function getGoogleAdWords() {
  var googleadwords = "utm_source,utm_medium,utm_term,utm_content,utm_campaign";
  var adwords = googleadwords.split(',');
  var cookievalue = "";
  var qstring = ""

	for(var i=0;i < adwords.length;i++) {
		 cookievalue = escape(readCookie(adwords[i]));
     if (String(cookievalue).length > 0) {
        if (String(qstring).length > 0) {qstring += "&";}
        qstring += adwords[i] + "=" + escape(cookievalue);
    }
	}

  if (qstring.length > 0) {qstring = "?" + qstring;}

  return qstring;
}
//]]>