// preloadimages 

	developmenthomeon =  new Image();
	developmenthomeon.src = "images/developmenthomeon.gif";
	developmenthomeoff = new Image();
	developmenthomeoff.src = "images/developmenthomeoff.gif";

	developmentabouton = new Image();
	developmentabouton.src = "images/developmentabouton.gif";						
	developmentaboutoff = new Image();
	developmentaboutoff.src = "images/developmentaboutoff.gif";

	developmentcontacton = new Image();
	developmentcontacton.src = "images/developmentcontacton.gif";	
	developmentcontactoff = new Image();
	developmentcontactoff.src = "images/developmentcontactoff.gif";

	developmentopticalon = new Image();
	developmentopticalon.src = "images/developmentopticalon.gif";						
	developmentopticaloff = new Image();
	developmentopticaloff.src = "images/developmentopticaloff.gif";

	developmentretailon = new Image();
	developmentretailon.src = "images/developmentretailon.gif";	
	developmentretailoff = new Image();
	developmentretailoff.src = "images/developmentretailoff.gif";	

	opticalon = new Image();
	opticalon.src = "images/opticalon.gif";	
	opticaloff = new Image();
	opticaloff.src = "images/opticaloff.gif";	

	trainingon = new Image();
	trainingon.src = "images/trainingon.gif";	
	trainingoff = new Image();
	trainingoff.src = "images/trainingoff.gif";

	developmenton = new Image();
	developmenton.src = "images/developmenton.gif";	
	developmentoff = new Image();
	developmentoff.src = "images/developmentoff.gif";
	
	// function to do rollovers on images
	function swapImage(num){
		if (num=="1") document.images ['developmenthome'].src = developmenthomeon.src;
		else if (num=="2") document.images ['developmenthome'].src = developmenthomeoff.src;				
		else if (num=="3") document.images ['developmentabout'].src = developmentabouton.src;	
		else if (num=="4") document.images ['developmentabout'].src = developmentaboutoff.src;	
		else if (num=="5") document.images ['developmentcontact'].src = developmentcontacton.src;
		else if (num=="6") document.images ['developmentcontact'].src = developmentcontactoff.src;				
		else if (num=="7") document.images ['optical'].src = opticalon.src;	
		else if (num=="8") document.images ['optical'].src = opticaloff.src;		
		else if (num=="9") document.images ['training'].src = trainingon.src;
		else if (num=="10") document.images ['training'].src = trainingoff.src;
		else if (num=="11") document.images ['development'].src = developmenton.src;	
		else if (num=="12") document.images ['development'].src = developmentoff.src;
		else if (num=="13") document.images ['developmentoptical'].src = developmentopticalon.src;	
		else if (num=="14") document.images ['developmentoptical'].src = developmentopticaloff.src;	
		else if (num=="15") document.images ['developmentretail'].src = developmentretailon.src;
		else if (num=="16") document.images ['developmentretail'].src = developmentretailoff.src;
	}