function init() {
IE = (document.all)
NC = (document.layers)
Opera = (document.getElementById)
}

function hide(layername) {
init();
if(IE) eval('document.all[layername].style.display = "none"')
if(NC) eval('document.layers[layername].display = "none"')
if(Opera) eval('document.getElementById(layername).style.display = "none"')
}

function show(layername) {
init();
if(IE) eval('document.all[layername].style.display = "block"')
if(NC) eval('document.layers[layername].display = "block"')
if(Opera) eval('document.getElementById(layername).style.display = "block"')
}

function openWindow(theURL,winName,features) { //v2.0
        features = 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=700,height=550';
  window.open(theURL,winName,features);
}