var timeout         = 500;
var closetimer		= 0;
var ddmenuitem      = 0;

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

	// 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 mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

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

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

// close layer when click-out
document.onclick = mclose;

var d=document;		
var activeLI = 0;		
var zInterval = null;	

var SLIDE_STEP = 12;	// how many pixels to move the sliding div at a time
var SLIDER_WIDTH = 74;	// the width of the sliding div. used to calculate
                        // its left based on the width and left of the active LI element


function init() {


	if(!document.getElementById || window.opera)return;

	mObj = d.getElementById("mContainer");
	liObj = mObj.getElementsByTagName("li");

	for(i=0;i<liObj.length;i++) {
		liObj[i].xid = i;
		liObj[i].onmouseover = function() { initSlide(this.xid); }
	}

	slideObj = mObj.appendChild(d.createElement("div"));
	slideObj.id = "sliderx";

	x = liObj[activeLI].offsetLeft + (liObj[activeLI].offsetWidth/3 - SLIDER_WIDTH/3)-5;
	y = liObj[activeLI].offsetTop-3;
	slideObj.style.top = (-y+28) + "px";
	slideObj.style.left = (x+5) + "px";
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function initSlide(objIndex) {
	
	if(objIndex == activeLI)return;
	clearInterval(zInterval);

	activeLI = objIndex;
	destinationX = Math.floor(liObj[activeLI].offsetLeft + (liObj[activeLI].offsetWidth/3 - SLIDER_WIDTH/3))-5;
	intervalMethod = function() { doSlide(destinationX); }
	zInterval = setInterval(intervalMethod,10);
}

function doSlide(dX) {
	x = slideObj.offsetLeft;
	if(x+SLIDE_STEP<dX) {
		x+=SLIDE_STEP;
		slideObj.style.left = x + "px";
	} else if (x-SLIDE_STEP>dX) {
		x-=SLIDE_STEP;
		slideObj.style.left = x + "px";
	} else  {
		slideObj.style.left = (dX+5) + "px";
		clearInterval(zInterval);
		zInterval = null;
	}
}

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

addLoadEvent(function() {
  init();
  
});