function openWin(url)
{
 window.open(url,"openWin","toolbars=0,manubar=0,scrollbars=1,directories=0,location=0,resizable=1,width=480,height=450,left=170,top=30");
}

var isNS = (navigator.appName == "Netscape");
var layerRef = "document.getElementById";
var styleRef = ".style";
var topRef = (isNS) ? ".top" : ".pixelTop";
var leftRef = (isNS) ? ".left" : ".pixelLeft";
var isDynamic = (document.getElementById);
var activeMenu = 0;

topPixel = 31;

function changeImage(imgName, imgSrc){
 if (!isNS) document.images[imgName].src = imgSrc.src;
}


function activateMenu(menuLayerRef){
 if (isDynamic && activeMenu != menuLayerRef)
 {
  if (activeMenu) hideMenu("menu" + activeMenu);
  menuID = "menu" + menuLayerRef;
  activeMenu = menuLayerRef;	
  eval(layerRef + "('" + menuID + "')" + styleRef + topRef + ' = ' + topPixel);
  showMenu(menuID);
 }
 //if (isDynamic && !isNS) window.event.cancelBubble = true;
}

function showMenu(menuID) {
 eval(layerRef + "('" + menuID + "')" + styleRef + '.visibility = "visible"');
}

function hideMenu(menuID){
 eval(layerRef + "('" + menuID + "')" + styleRef + '.visibility = "hidden"');
}

function killMenu(){
 if (activeMenu != 0)
 {
  menuID = "menu" + activeMenu;
  hideMenu(menuID);
  activeMenu = 0;
 }  
}

function spanIn(theSpan){
 theSpan.className='overSpan';
 if (activeMenu)
 { 
  if (!isNS) eval("item" + activeMenu + ".className='overSpan'");
 }
}

function spanOut(theSpan){
 theSpan.className='outSpan';
}