ie=ns=op=sf=false;
iePng=false;

if (navigator.userAgent.indexOf ("Opera") != -1) {op=true}
else if (navigator.userAgent.indexOf ("MSIE") != -1) {ie=true; var n = navigator.userAgent.indexOf("MSIE")+5; iePng = (navigator.userAgent.substring(n, n+1) >= 7) ? true : false}
else if (navigator.userAgent.indexOf ("Safari") != -1) {sf=true}
else if (navigator.userAgent.indexOf ("Netscape") != -1 ||
         navigator.userAgent.indexOf ("Gecko") != -1 ||
         navigator.userAgent.indexOf ("Mozilla") != -1 ||
         navigator.userAgent.indexOf ("Firefox") != -1) {ns=true}


function PreloadImages()
{
 if (document.images)
  {
   var preloadArray = new Array();
   for (var i = 1; i < arguments.length; i++)
    {
     preloadArray[i-1] = new Image();
     preloadArray[i-1].src = arguments[0]+"_gfx/"+arguments[i];
    }
  }
}


function NavOver(elem, n, ext)
{
 elem = elem.firstChild;
 elem.src = langPath+'_gfx/nav'+n+'-ovr.'+ext;
}


function NavOut(elem, n, ext)
{
 elem = elem.firstChild;
 elem.src = langPath+'_gfx/nav'+n+'.'+ext;
}