if (document.images)
   	{
    	homeon= new Image();
     	homeon.src="Images/homeover.gif";  
		homeoff= new Image();
		homeoff.src="Images/home.gif";
		
		locationon= new Image();
     	locationon.src="Images/locationover.gif";
		locationoff= new Image();
		locationoff.src="Images/location.gif";
		
		ticketson= new Image();
     	ticketson.src="Images/ticketsover.gif"; 
		ticketsoff= new Image();
		ticketsoff.src="Images/tickets.gif"; 

		photoson= new Image();
     	photoson.src="Images/photosover.gif"; 
		photosoff= new Image();
		photosoff.src="Images/photos.gif"; 
		
		contacton= new Image();
     	contacton.src="Images/contactover.gif"; 
		contactoff= new Image();
		contactoff.src="Images/contact.gif"; 
		
		
	
	}
	
	function navover(imgName)
	 {
	   if (document.images)
		{
		  imgOn=eval(imgName + "on.src");
		  document.images[imgName].src= imgOn;
		}
	 }
	
	function navoff(imgName)
	 {
	   if (document.images)
		{
		  imgOff=eval(imgName + "off.src");
		  document.images[imgName].src= imgOff;
		}
	 }