function xChange(imageName, newState) {
	if (document.images) {
		if (newState == "over")
		document.images[imageName].src = overImage[imageName].src
		else
		document.images[imageName].src = offImage[imageName].src
		}
}


function popUp(type,URL, x, y) {
	var myWin = window.open(URL,type, "resizable=yes,scrollbars=yes,height=" + y + ",width=" + x);
}

function popUpTwo(type,URL, x, y) {
	var myWin = window.open(URL,type, "resizable=yes,scrollbars=no,height=" + y + ",width=" + x);
}


if (document.images) {
	overImage = new Array()

	overImage['nav_1'] = new Image()
	overImage['nav_1'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/01_home_on.gif"
	overImage['nav_2'] = new Image()
	overImage['nav_2'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/02_year_on.gif"
	overImage['nav_3'] = new Image()
	overImage['nav_3'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/03_grandawards_on.gif"
	overImage['nav_4'] = new Image()
	overImage['nav_4'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/04_innovators_on.gif"
	overImage['nav_5'] = new Image()
	overImage['nav_5'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/05_multimedia_on.gif"

	offImage = new Array()
	
	offImage['nav_1'] = new Image()
	offImage['nav_1'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/01_home_off.gif"
	offImage['nav_2'] = new Image()
	offImage['nav_2'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/02_year_off.gif"
	offImage['nav_3'] = new Image()
	offImage['nav_3'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/03_grandawards_off.gif"
	offImage['nav_4'] = new Image()
	offImage['nav_4'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/04_innovators_off.gif"
	offImage['nav_5'] = new Image()
	offImage['nav_5'].src = "http://www.popsci.com/popsci/flat/bown/2007/images/navigation/05_multimedia_off.gif"

}

function popMailWin() {
        var pageURL   = escape(self.document.URL);
    var pageTitle = escape(self.document.title );
    var formURL   = "/cgi-bin/mail/mailurl2friend.cgi?path=/popsci/email&url=" + pageURL + "&group=popsci&title=" + pageTitle ;
        window.open(formURL,"emailpop","height=475,width=350,resizable,scrollbars");
        return false;
}