var mastertabvar = new Object();
mastertabvar.baseopacity = 0;
mastertabvar.browserdetect = "";

function showsubmenu(masterid, id) {
	if (typeof highlighting != "undefined")
		clearInterval(highlighting);
	submenuobject = document.getElementById(id)
	mastertabvar.browserdetect = submenuobject.filters ? "ie"
			: typeof submenuobject.style.MozOpacity == "string" ? "mozilla"
					: "";
	hidesubmenus(mastertabvar[masterid]);
	submenuobject.style.display = "block";
	instantset(mastertabvar.baseopacity);
	highlighting = setInterval("gradualfade(submenuobject)", 50);
}

function hidesubmenus(submenuarray) {
	for ( var i = 0; i < submenuarray.length; i++)
		document.getElementById(submenuarray[i]).style.display = "none";
}

function instantset(degree) {
	if (mastertabvar.browserdetect == "mozilla")
		submenuobject.style.MozOpacity = degree / 100;
	else if (submenuobject.filters.alpha != null
			&& mastertabvar.browserdetect == "ie")
		submenuobject.filters.alpha.opacity = degree;
}

function gradualfade(cur2) {
	if (mastertabvar.browserdetect == "mozilla" && cur2.style.MozOpacity < 1)
		cur2.style.MozOpacity = Math.min(
				parseFloat(cur2.style.MozOpacity) + 0.1, 0.99);
	else if (mastertabvar.browserdetect == "ie"
			&& cur2.filters.alpha.opacity < 100)
		cur2.filters.alpha.opacity += 10;
	else if (typeof highlighting != "undefined") // fading animation over
		clearInterval(highlighting);
}

function initalizetab(tabid) {
	mastertabvar[tabid] = new Array();
	var menuitems = document.getElementById(tabid).getElementsByTagName("li");
	for ( var i = 0; i < menuitems.length; i++) {
		if (menuitems[i].getAttribute("rel")) {
			menuitems[i].setAttribute("rev", tabid); // associate this submenu
													// with main tab
			mastertabvar[tabid][mastertabvar[tabid].length] = menuitems[i].getAttribute("rel"); // store ids of submenus of tab menu
			if (menuitems[i].className == "selected")
				showsubmenu(tabid, menuitems[i].getAttribute("rel"))
			menuitems[i].getElementsByTagName("a")[0].onmouseover = function() {
				showsubmenu(this.parentNode.getAttribute("rev"),
						this.parentNode.getAttribute("rel"));
			}
		}
	}
}


   function blinkIt() {
	 if (!document.all) return;
	 else {
	   for(i=0;i<document.all.tags('blink').length;i++){
	      s=document.all.tags('blink')[i];
	      s.style.visibility=(s.style.visibility=='visible')?'hidden':'visible';
	   }
	 }
	}

	function addLoadEvent(func) {
	  var oldonload = window.onload;
	  if (typeof window.onload != 'function') {
	    window.onload = func;
	  } else {
	    window.onload = function() {
	      if (oldonload) {
	        oldonload();
	      }
      func();
    }
  }
}