function $(obj) { return document.getElementById(obj); }

function preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
preImages = new Array("images/MainNav_1.gif","images/MainNav_2.gif","images/MainNav_3.gif","images/MainNav_4.gif","images/MainNav_5.gif","images/MainNav_6.gif","images/MainNav_7.gif","images/MainNav_8.gif","images/MainNav_1_2.gif","images/MainNav_2_2.gif","images/MainNav_3_2.gif","images/MainNav_4_2.gif","images/MainNav_5_2.gif","images/MainNav_6_2.gif","images/MainNav_7_2.gif","images/MainNav_8_2.gif","MainBg_1.jpg","MainBg_2.jpg","MainBg_3.jpg","MainBg_4.jpg");
function callPreloadImages () {
	for	(i=0; i<preImages.length; i++)
	{
		preloadImages("'"+preImages[0]+"'");	
	}
}

navHover = function() {
  var lis = document.getElementById("MainNav").getElementsByTagName("LI");
  for (var i=0; i<lis.length; i++) {
    lis[i].onmouseover=function() {
      this.className+="iehover";
    }
    lis[i].onmouseout=function() {
      this.className=this.className.replace(new RegExp("iehover\\b"), "");
    }
  }
}

j=Math.round(3*Math.random())+1;
image = new Array("MainBg_1.jpg","MainBg_2.jpg","MainBg_3.jpg","MainBg_4.jpg");
function setMainBackGround()
{
	$("Content").style.backgroundImage = "url('images/"+image[j-1]+"')";
	if(j<4) j=j+1;
	else j=1;
	setTimeout("setMainBackGround()",10000)
}

if (window.attachEvent) window.attachEvent("onload", navHover);
if (window.attachEvent) window.attachEvent("onload", callPreloadImages);