var eachNthUser = 5;



function hasSurveyCookie() {

	return document.cookie.indexOf('WWSurveySeen') != -1;

}



function setSurveyCookie() {

	document.cookie = "WWSurveySeen=yes; expires='Mon, 25-Aug-03 12:00:01 GMT'";

}



if (Math.random() * eachNthUser < 1) {

	if (! hasSurveyCookie()) {

		surveywin = window.open('ww_survey/index.html?mode=random','surveywin','width=400,height=360,resizable=yes,scrollbars=yes');

		setSurveyCookie();

	}

}



function openSurveyDirect(mode) {

	surveywin = window.open('ww_survey/survey.html?mode='+mode,'surveywin','width=400,height=400,resizable=yes,scrollbars=yes');

	setSurveyCookie();

}