var buttonids=new Array();
	buttonids[0]="button01";
	buttonids[1]="button02";
	buttonids[2]="button03";
	buttonids[3]="button04";
	buttonids[4]="button05";
	buttonids[5]="button06";
	var buttonimgs=new Array();
	var buttonimgs_on=new Array();
	buttonimgs[0]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_01.png";
	buttonimgs[1]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_02.png";
	buttonimgs[2]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_03.png";
	buttonimgs[3]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_04.png";
	buttonimgs[4]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_05.png";
	buttonimgs[5]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_06.png";
	buttonimgs_on[0]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_01_on.png";
	buttonimgs_on[1]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_02_on.png";
	buttonimgs_on[2]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_03_on.png";
	buttonimgs_on[3]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_04_on.png";
	buttonimgs_on[4]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_05_on.png";
	buttonimgs_on[5]="http://www-2.virtualevents365.com/rhexp/images/btn_main_nav_06_on.png";
	function setAllClear(){
		setHighlighted(-1);
	}
	function setHighlighted(idx){
		for(var i=0;i<buttonids.length;i++){
			var btnimg=document.getElementById(buttonids[i]);
			if(btnimg&&btnimg.nodeType&&btnimg.nodeType==1&&btnimg.tagName.toLowerCase()=="img"){
				if(i==idx){
					btnimg.src=buttonimgs_on[i];
				}else{
					btnimg.src=buttonimgs[i];
				}
			}
		}
	}


function MM_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=MM_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];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}