function changeImages() 
		 {
		  	if (document.images) 
		  	 {
		    		for (var i=0; i<changeImages.arguments.length; i+=2) 
		    		 {
		      			document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
		    		 }
		  	 }
		 };
	

if (document.images) 
 {
	  image1on = new Image();
	  image1on.src = "/images/nav/exploreOn.gif";
	  
	  image2on = new Image();
	  image2on.src = "/images/nav/installationOn.gif";
	  
	  image3on = new Image();
	  image3on.src = "/images/nav/symposiumOn.gif";
	  
	  image4on = new Image();
	  image4on.src = "/images/nav/calendarOn.gif";
	  
	  image5on = new Image();
	  image5on.src = "/images/nav/newsOn.gif";
	  
	  image6on = new Image();
	  image6on.src = "/images/nav/multimediaOn.gif";
	  
	  image7on = new Image();
	  image7on.src = "/images/nav/blogOn.gif";
	  
	  image8on = new Image();
	  image8on.src = "/images/nav/aboutOn.gif";
	  
	  image9on = new Image();
	  image9on.src = "/images/nav/centerOn.gif";
	  
	  <!-- -->
	  
	  image1off = new Image();
	  image1off.src = "/images/nav/explore.gif";
	  
	  image2off = new Image();
	  image2off.src = "/images/nav/installation.gif";
	  
	  image3off = new Image();
	  image3off.src = "/images/nav/symposium.gif";
	  
	  image4off = new Image();
	  image4off.src = "/images/nav/calendar.gif";
	  
	  image5off = new Image();
	  image5off.src = "/images/nav/news.gif";
	  
	  image6off = new Image();
	  image6off.src = "/images/nav/multimedia.gif";
	  
	  image7off = new Image();
	  image7off.src = "/images/nav/blog.gif";
	  
	  image8off = new Image();
	  image8off.src = "/images/nav/about.gif";

	  image9off = new Image();
	  image9off.src = "/images/nav/center.gif";
}