// JavaScript Document
// preload navigation images:
function preloadImages() {
	
	philosophy_on.src = "/images/nav-pnc/philosophy_on.gif";
	philosophy_off.src = "/images/nav-pnc/philosophy_off.gif";
		
	criteria_on.src = "/images/nav-pnc/criteria_on.gif";
	criteria_off.src = "/images/nav-pnc/criteria_off.gif";
			
	investments_on.src = "/images/nav-pnc/investments_on.gif";
	investments_off.src = "/images/nav-pnc/investments_off.gif";
				
	team_on.src = "/images/nav-pnc/team_on.gif";
	team_off.src = "/images/nav-pnc/team_off.gif";
					
	newsevents_on.src = "/images/nav-pnc/ne_on.gif";
	newsevents_off.src = "/images/nav-pnc/ne_off.gif";
	
	contact_on.src = "/images/nav-pnc/contact_on.gif";
	contact_off.src = "/images/nav-pnc/contact_off.gif";
	
	home_over.src = "/images/nav-pnc/home_over.gif";
	home_off.src = "/images/nav-pnc/home_off.gif";
	
}

	if (document.images) {
   
   philosophy_on = new Image();
   philosophy_on.src = "/images/nav-pnc/philosophy_on.gif";
   philosophy_off = new Image();
   philosophy_off.src = "/images/nav-pnc/philosophy_off.gif"
      
   criteria_on = new Image();
   criteria_on.src = "/images/nav-pnc/criteria_on.gif";
   criteria_off = new Image();
   criteria_off.src =  "/images/nav-pnc/criteria_off.gif";
   
   investments_on = new Image();
   investments_on.src = "/images/nav-pnc/investments_on.gif";
   investments_off = new Image();
   investments_off.src = "/images/nav-pnc/investments_off.gif";
   
   team_on = new Image();
   team_on.src = "/images/nav-pnc/team_on.gif";
   team_off = new Image();
   team_off.src = "/images/nav-pnc/team_off.gif";
   
   newsevents_on = new Image();
   newsevents_on.src = "/images/nav-pnc/ne_on.gif";
   newsevents_off = new Image();
   newsevents_off.src = "/images/nav-pnc/ne_off.gif";
   
   contact_on = new Image();
   contact_on.src = "/images/nav-pnc/contact_on.gif";
   contact_off = new Image();
   contact_off.src = "/images/nav-pnc/contact_off.gif";

   home_over = new Image();
   home_over.src = "/images/nav-pnc/home_over.gif";
   home_off = new Image();
   home_off.src = "/images/nav-pnc/home_off.gif";

	} 


function swapImage(imgName,newImage) {
   if (document.images) {
      eval('document.' + imgName + '.src = ' + newImage + '.src');
   }
}


function init(){

isNS4 = (document.layers) ? true : false;
isIE4 = (document.all && !document.getElementById) ? true : false;
isIE5 = (document.all && document.getElementById) ? true : false;
isNS6 = (!document.all && document.getElementById) ? true : false;

	
		if (isNS4){
		   layerRef = "document.layers";
		   styleSwitch="";
		}
		else if (isIE4) {
		   layerRef = "document.all";
		   styleSwitch=".style";
		}
		else if (isIE5 || isNS6) {
		   layerRef = "document.getElementById";
		   styleSwitch=".style";
		}		

		//wipeLeft('loadingBG');
		//hideLayer('header');
		//hideLayer('msg');
temp=0;
	}


//GENERAL FUNCTIONS
	function showLayer(layerName){

		clearTimeout(temp);

		var a = showLayer.arguments;
		for (i=0; i<a.length; i++) {
		
		//alert(layerRef+'("'+a[i]+'")'+'.style.visibility="visible"');
			if (isIE5 || isNS6) {
	   		eval(layerRef+'("'+a[i]+'")'+styleSwitch+'.visibility="visible"');
			}else{
			eval(layerRef+'["'+a[i]+'"]'+styleSwitch+'.visibility="visible"');
			}
		}

		temp=setTimeout('hideLayer("'+layerName+'")',3000);
	}
	

	function hideLayer(){
		var a = hideLayer.arguments;
		//alert(hideLayer.arguments);
  		for (i=0; i<a.length; i++) {
    	//alert(a[i]);
			if (isIE5 || isNS6) {
	   		eval(layerRef+'("'+a[i]+'")'+styleSwitch+'.visibility="hidden"');
			} else{
			eval(layerRef+'["'+a[i]+'"]'+styleSwitch+'.visibility="hidden"');
			}
		}
	}