//==================== rollover script ====================//
function rollover(imgName, active) {
	if (document.images) {
		active? document.images[imgName].src = self[imgName + '_on'].src : document.images[imgName].src = self[imgName + '_off'].src
	}
}



//==================== popup window script ====================//
var popupWin = null;

function popup(theURL, winName, features) {
	popupWin = window.open(theURL, winName, features);
	if (popupWin.focus) popupWin.focus();
}