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];}
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
			var myCurrentSubMenu='';
			var myCurrentHighlight='';
			
	function  ShowSubMenu(myLink){
		StopMenuTimeOut();
		if(myLink!=myCurrentSubMenu)
		{
			HideSubMenu();
			myCurrentSubMenu = myLink;
			tabMain = document.getElementById('td' + myLink );
			MoveSubMenu('div_Menu' + myLink, CalculatePosition('img'+myLink));
			MM_swapImage('img'+myLink,'','/ERImages/menu_' + myLink + 'ON.gif',0)
			MM_showHideLayers('div_Menu'+myLink,'','show');
		}
	}
	
	function MoveSubMenu(mysubMenu, xPos){
	//Moves submenu to position of parent
		var yPos = '150';
		var obj1 = document.getElementById(mysubMenu);
		if(obj1){
			obj1.style.left = parseInt(xPos) + 'px';
			obj1.style.top = parseInt(yPos) + 'px';
		}
	}
	
	function CalculatePosition(elemID) {
		var offsetTrail = document.getElementById(elemID);
		var offsetLeft = -3;
		while (offsetTrail) {
			offsetLeft += offsetTrail.offsetLeft;
			offsetTrail = offsetTrail.offsetParent;
		}

		return offsetLeft.toString();
	}

	function HideSubMenu(){
	//Retrieves value of current div from global variable, locates objects, hides divs and changes styles back to normal
		StopMenuTimeOut();
		NoSubLinkHighlight();
		var mySelection = myCurrentSubMenu;
		if(mySelection!=''){
			MM_showHideLayers('div_Menu'+mySelection,'','hide');
			var myMenuImg = document.getElementById('img'+mySelection);
			myMenuImg.src = '/ERImages/menu_' + mySelection + '.gif';
			myCurrentSubMenu="";
			
		}
	}
	var menutimer;
	var currentsubmenu='1';
	
	function StartMenuTimeOut(){
		menutimer = setTimeout("HideSubMenu()", 1000);
		//Starts Timeout to hide div that is stored in hidden field for that level.
	}
	function StopMenuTimeOut() {
		clearTimeout(menutimer);
	
	}
	function HighlightSubLink(subLink,status){
	//Creates TR name based on mainlink and sublink, if status 1 turns on if status -1 turns off
		var mainLink = myCurrentSubMenu;
		if(mainLink!=''){
			leftTD = document.getElementById('tdLeft'+ mainLink + subLink);
			mainTD = document.getElementById('tdMain'+ mainLink + subLink);
			currentlink = document.getElementById('lnk'+ mainLink + subLink);
			if(status=='1'){
				leftTD.className = 'submenuTop';
				mainTD.className = 'submenuOn';
				currentlink.className = 'headerMenu';
				myCurrentHighlight = subLink;
			} else {
				leftTD.className = 'submenuOn';
				mainTD.className = 'submenuOff';
				currentlink.className = 'headerMenuOut';
				myCurrentHighlight = '';
			}
		}
	}
	function NoSubLinkHighlight() {
		if(myCurrentHighlight!='')
		HighlightSubLink(myCurrentHighlight, '-1');
	}
	function AutoLinkTd(){
		//Obtains stored menu and submenu values, locates link and changes window location to it
		myATag = document.getElementById('lnk' + myCurrentSubMenu + myCurrentHighlight);
		window.location = myATag.href;
	}
  var PortfolioIdSelected = '';
  var PortfolioSectionSelected = '';
  function PortfolioOver(idNum,photoDir){
  		var tdThumb = document.getElementById('td_thumb' + photoDir + idNum);
		tdThumb.className = 'thumbnailsOver';
  }
  function PortfolioOut(idNum,photoDir){
  		var tdThumb = document.getElementById('td_thumb' + photoDir + idNum);
		if(PortfolioIdSelected !=idNum){
				tdThumb.className = 'thumbnailsOff';
		}else {
				tdThumb.className = 'thumbnailsOn';
		}
  }
  function PortfolioClick(idNum,photoDir){
  		var tdThumb = document.getElementById('td_thumb' + photoDir + idNum);
		var tdOldSelection = document.getElementById('td_thumb' + PortfolioSectionSelected + PortfolioIdSelected);
		if(tdOldSelection){
			tdOldSelection.className = 'thumbnailsOff';
		}
		var imgPreview = document.getElementById('imgPreviewPhoto');
		imgPreview.src = '/ERImages/gallery/' + photoDir + '/' + idNum +'.jpg';
		tdThumb.className = 'thumbnailsOn';
		PortfolioIdSelected = idNum;
		PortfolioSectionSelected = photoDir;		
  }