function detect_browser()
{
var browser;

// FireFox
if (navigator.userAgent.toLowerCase().indexOf("firefox") > -1)
{
var start_pos = (navigator.userAgent.toLowerCase().indexOf("firefox")+8);
var end_pos = start_pos+1;
browser = "firefox" + navigator.userAgent.substring(start_pos, end_pos);
}

// Opera
else if (navigator.userAgent.toLowerCase().indexOf("opera") > -1)
{
var start_pos = (navigator.userAgent.toLowerCase().indexOf("opera")+6);
var end_pos = start_pos+4;
browser = "opera";
}

return browser;
}


function Toggle(item) {
   obj=document.getElementById(item);
   visible=(obj.style.display!="none")
   key=document.getElementById("x" + item);
   if (visible) {
     obj.style.display="none";
     key.innerHTML="<img src='/images/style/submenu/menu-closed.gif' width='16' height='16' hspace='0' vspace='0' border='0'>";
   } else {
      obj.style.display="block";
      key.innerHTML="<img src='/images/style/submenu/menu-open.gif' width='16' height='16' hspace='0' vspace='0' border='0'>";
   }
}