nn4 = (document.layers)? true : false;
ie4 = (document.all)? true : false;
nn6 = (document.getElementById && !ie4)? true : false
function popupWin(fileName, windowName, winWidth, winHeight) {
newWindow = window.open(fileName,windowName,"menubar=no, resizable=yes, toolbar=no, scrollbars=yes, status=yes,  width=515, height=730");
newWindow.focus();
}