var timeout = 200;
var closetimer = 0;
var ddmenuitem = 0;

// open hidden layer
function mopen(id)
{  
   // cancel close timer
   avanquestclosetimer();

   // close old layer
   if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

   // get new layer and show it
   ddmenuitem = document.getElementById(id);
   ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function avanquestclose()
{
   if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function avanquesttimeclose()
{
   closetimer = window.setTimeout(avanquestclose, timeout);
}

// cancel close timer
function avanquestclosetimer()
{
   if(closetimer)
   {
      window.clearTimeout(closetimer);
      closetimer = null;
   }
}

// close layer when click-out
//document.onclick = avanquestclose;
// fixes css/html for non standard browsers
Hoverfix = function() {
	var cssRule;
	var newSelector;
	for (var i = 0; i < document.styleSheets.length; i++)
		for (var x = 0; x < document.styleSheets[i].rules.length ; x++)
			{
			cssRule = document.styleSheets[i].rules[x];
			if (cssRule.selectorText.indexOf("LI:hover") != -1)
			{
				 newSelector = cssRule.selectorText.replace(/LI:hover/gi, "LI.iehover");
				document.styleSheets[i].addRule(newSelector , cssRule.style.cssText);
			}
		}
	var getElm = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<getElm.length; i++) {
		getElm[i].onmouseover=function() {
			this.className+=" iehover";
		}
		getElm[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" iehover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", stuHover);